
	Where results make sense

Topic: Biramous

Related Topics

Uniramous

Arthropoda

Uniramia

Nasir

Vinayagar Agaval

1989 United States Grand Prix

Volissos

	Biramous -- Facts, Info, and Encyclopedia article (Site not responding. Last check: 2007-11-04)
		Biramous is a term used for branched (Invertebrate having jointed limbs and a segmented body with an exoskeleton made of chitin) arthropod appendages.
		Biramous appendages are best known from (An extinct arthropod that was abundant in Palaeozoic times; had an exoskeleton divided into three parts) trilobites where all the legs -- both on the head and the thorax -- are parts of biramous structures with a gill branching off above the leg.
		Examples of uniramous structures are (An extinct arthropod that was abundant in Palaeozoic times; had an exoskeleton divided into three parts) trilobite (Click link for more info and facts about antennae) antennae and the legs of (Click link for more info and facts about chelicerates) chelicerates.
	www.absoluteastronomy.com /encyclopedia/b/bi/biramous.htm (191 words)

	[No title]
		The antennules are biramous, the antennae have the expodite (outer branch) scale-like.
		The main distinguishing features are (i) when gills occur in Isopoda they are on the abdomen but in Amphipoda on the thorax, and (ii) Isopoda have a single pair of backward-facing appendages (uropods) on the terminal abdominal segment, Amphipoda have 3 pairs, though the third is reduced in one family.
		The uropods of Isopoda are biramous (two-branched) and the basal piece (peduncle) may be short and squat or long and cylindrical.
	lucidcentral.com /keys/lwrrdc/public/aquatics/adcrust/html/CRUS__I.htm (463 words)

	Morphology Lecture Notes 2.
		Ideas about the multiple evolution of arthropod limbs from uniramous and biramous ancestors is not supported by detailed studies of morphology, and more importantly, is not supported by studies of developmental hox genes that have emerged as powerful tools in tracing the origins of limb evolution (from Nature 388, 14 August 1997).
		To understand the comparative anatomy of arthropod legs it is useful to consider a generalized biramous arthropod limb, such as from a primitive crustacean, as a hypothetical model for the ancestral state.
		The biramous limb as an ancestral limb became dogma.
	www.agctr.lsu.edu /arthropodmuseum/morpholect.2.htm (2530 words)

	Nebalia Laboratory Exercise (Site not responding. Last check: 2007-11-04)
		The original crustacean appendages were biramous but uniramous limbs are common in derived taxa.
		The posterior abdominal appendages are vestigial or absent.
		The male gonopores are on thoracic segment 8, the female on 6, as expected in malacostracans.
	www.lander.edu /rsfox/310nebaliaLab.html (1987 words)

	Crustaceamorpha
		A biramous appendage is one that has two branches.
		Crustacean biramous appendages have a basal or first portion referred to as the protopod.
		As you move away from the body on a biramous appendage you find a branch on the outside, the exopod (exo means outer), and a branch on the inside, the endopod (endo means inner).
	www.ucmp.berkeley.edu /arthropoda/crustacea/appendages.html (358 words)

	Annelida
		In the present article the Annelida will be understood as comprehending the A. DISCOPHORA, and A. GEPHYREA, the first two being often placed together in the subclass Chaetopoda.
		1) is elongated, segmented, more or less cylindrical (certain tubicolous forms having two well-marked (regions), and almost universally furnished with uniramous or biramous bristlebearing feet (parapodia, Huxley).
		The first segment is modified, so as to form a head or snout, and has the eyes, tentacles, andc.
	www.1902-encyclopedia.com /A/ANN/annelida.html (6221 words)

	Mysidacea: Families, Subfamilies and Tribes - Siriellinae
		1st pair biramous, or endopod reduced (as in Siriella armata); 2nd pair biramous; 3rd pair biramous; 4th pair biramous; 5th pair biramous.
		The tribe Siriellini contains Hemisiriella Hansen, 1910 and Siriella Dana, 1850 and diagnosed by the male pleopods with a spirally coiled or straight pseudobranchial lobe on the basal segment of the endopod.
		The tribe Metasiriellini consists of the species Metasiriella kitaroi Murano, 1986 and is diagnosed by the reduction of the first, second, third, and fifth male pleopods, and a fourth biramous pleopod with a uniramous and pseudobranchial lobe on the basal segment of the endopod.
	www.crustacea.net /crustace/mysidacea/www/sirriell.htm (279 words)

	American Zoologist: Morphogenesis and homology in arthropod limbs
		Limbs with two branches, termed biramous, have a medial branch (endopod) which, like a uniramous limb, is segmented and rod-- shaped; the second branch (exopod) is unsegmented and arises laterally.
		On morphological grounds it is difficult to identify the major limb axis (termed endopod) to serve as a landmark for defining other branches because multibranched, phyllopodous limbs often have few or no joints-the essential feature of leg segmentation-and similarly lack iterated musculature.
		To understand the pathway of transformation from biramous to other limb morphologies, one would ideally map limb morphology onto an independent phylogeny.
	www.findarticles.com /p/articles/mi_qa3746/is_199906/ai_n8833603 (1212 words)

	Anne Davison - Dance
		Biramous, an ongoing project, is a cellist/dancer duo that features Anne and Vancouver-based dancer Jill Henis.
		The production, which took its name from a Middle English expression meaning ‘in the now,’ focused on two separate but interrelated journeys; music and dance met and the lines of tradition were blurred as Anne and Jill strove to unite music and dance in an unprecedented way.
		Aided by the versatility of her mobile electric cello, she intends to pursue the idea of ‘the dancing cellist.’
	www.annedavison.net /dance.htm (297 words)

	Crustacea
		The trunk is primitively composed of many similar segments each with similar biramous appendages, more advanced groups have uniramous appendages, fewer segments that are more specialized or fused into distinct regions (thorax and abdomen), part of the thorax may be fused to the head (cephalothorax).
		Mysidacea- opossum shrimps, carapace extends over most of the thorax but not fused with the last 4 segments, eyes stalked, 1 or 2 pairs of maxillipeds, 6 or 7 pairs of biramous swimming legs, 5 pairs of pleopods the fourth is very long in males, 780 species, all but 42 are marine.
		Isopoda- isopods or sowbugs, body flattened, no carapace, eyes sessile, first thoracic segment fused with the head, 1 pair of maxillipeds, 1 pair of gnathopods, 6 pairs of pereiopods, 5 pairs of flattened pleopods, 0-5 abdominal segments fused with the telson, 1 pair of uropods, over 4,000 species, mostly marine, also terrestrial, freshwater, many troglobits.
	www.esg.montana.edu /dlg/aim/crustac/crustac.html (1487 words)

	The Rhynie Chert Fauna
		The head appears to be rounded towards the anterior where it bears a conspicuous notch, possibly representing the position of the naupliar eye (see inset below).
		First antennae (antennules) have not been observed, but the second antennae are distinctive in that they are long and biramous (see inset right), with symmetrical multi-segmented rami - a feature seen in extant Onychura rather than Calmanostraca (Fayers and Trewin 2003).
		Above: Near ventral view of a segmented, biramous second antenna (A2) attached to fragmented remains of the head (H).
	www.abdn.ac.uk /rhynie/castracoll.htm (1481 words)

	Biramous
		"Biramous" is a common misspelling or typo for: bigamous.
		English words defined with "biramous": bifurcate, branched ♦ forked ♦ pronged, prongy.
		Words rhyming with "biramous" (pronounced '*Bira"mous**'): Abnormous, Achymous, Angiomonospermous, Angiospermous, Antistrumous, Aspermous, Athermous, Brumous, Campylospermous, Chromous, Chymous, Coelospermous, Diathermous, Disspermous, Edriophthalmous, Enneaspermous, Enormous, Epiphylospermous, Famous, grumous, Gummous, Heptaspermous, Heterochromous, Heteropelmous, Homochromous, Limous, Nomopelmous, Octospermous, Oligospermous, Orthospermous, Pentaspermous, Poikilothermous, Polychromous, Polyspermous, Ramous, Sarcasmous, Schizopelmous, Simous, Squaimous, Strumous, Synpelmous, Tetraspermous, Trachyspermous, Trispermous, Uniramous, Xanthospermous.
	www.websters-online-dictionary.org /Bi/Biramous.html (436 words)

	More on Arthropod Morphology (Site not responding. Last check: 2007-11-04)
		The rest historically have legs with two branches (biramous appendages).
		The outer branch is often a flattened gill, while the inner branch is often used for walking or modified for grasping, chewing, or reproduction.
		A number of arthropods that now apparently have uniramous appendages, such as spiders and scorpions, are descended from ancestors that had biramous appendages: appendages may be modified in such a way that one branch is lost or concealed.
	www.ucmp.berkeley.edu /arthropoda/arthropodamm.html (178 words)

	Subfamily Mysinae (Site not responding. Last check: 2007-11-04)
		Thoracic endopods 3-8 with undivided carpus divided from propodus (2-articulated) by an oblique articulation (Fig.
		Thoracic endopods 3-8 with carpus divided from propodus by transverse articulation (Fig.4c); male pleopods 2-4 biramous, rami subequal with 7-8 articles (Fig.4d), pleopod 5 biramous with elongate exopod reaching the end of the endopod of the uropod (Fig.
		All male pleopods uniramous, pleopods 1-3 rudimentary, 4 and 5 elongate (Fig.
	tidepool.st.usm.edu /mysids/mysinae.html (276 words)

	Crustacea, the Higher Taxa - Amphionidacea (Eucarida, Malacostraca)
		Antennules (antenna 1) biramous; peduncle and flagellum distinct.
		Antennae (antenna 2) biramous; exopod forming a scaphocerite (very large).
		Peraeopods (legs) 6 pairs; biramous (exopods reduced in females); non-phyllopodous; undifferentiated (simple).
	www.crustacea.net /crustace/www/amphion.htm (110 words)

	Crustacea (Site not responding. Last check: 2007-11-04)
		Abdominal limbs, known as pleopods, typically serve the function of locomotion; they are biramous swimming appendages (Moore, 1969).
		Characterized morphologically by two pairs of antennae in front of the mouth and one pair of mandibles behind mouth.
		Primitive members with biramous appendages, others secondarily uniramous and /or highly specialized.
	www.cox-internet.com /coop/crustacea.html (1602 words)

	TRILOBITE TALES (Site not responding. Last check: 2007-11-04)
		Aquatic Arthropoda with preoral antennae and remaining appendages of typical or modified trilobite type, biramous appendages characterized by the presence of lateral gill branch attached to very base of walking leg.
		Charles Doolittle Walcott posing with the Burgess Shale in 1913.
		This is important because Darwin and others considered the biramous limb to be the key to the relationship.
	www.susqu.edu /satsci/03-05-24/trilobite_tales.htm (3100 words)

	Reading notes for arthropods
		Uniramous appendages are unbranched whereas biramous appendages branch into an upper "gill branch" and a lower "leg branch".
		Phylum Trilobata -1 pair of uniramous antenna in front of mouth, rest of appendages are biramous.
		The bulk of the chapter is devoted to the (ever-popular) trilobites.
	www.uwm.edu /People/mtharris/Paleo2002/RN20.htm (898 words)

	CYPRIS No. 17 (1999) Abstracts
		Unambiguously biramous appendages with a proximal precoxa, well defined coxa and basis, setose plate-like epipod originating on the precoxa, and both an endopod and exopod attached to the terminal end of the basis are described from several living Ostracoda of the order Halocyprida (Myodocopa).
		Homologies between podocopid limbs and those of the illustrated primitive myodocopid limbs are tentatively suggested.
		Thaumatoconcha) have dorsal trunk segmentation, and several have unambiguous biramous limbs.
	biology.usgs.gov /cro/Ostracode/Cyp99/99cyabst.htm (891 words)

	Geolan (Site not responding. Last check: 2007-11-04)
		Pereopods biramous except sometimes the last pair which can be reduced
		Antennae primitively biramous and often with scale-like exopod
		Abdomen with 5 pairs of primitively biramous pleopods
	allserv.rug.ac.be /~tdeprez/Mysidacea/General/Pages/Systematic.html (196 words)

	[No title] (Site not responding. Last check: 2007-11-04)
		The body is divided into a 5-segmented head, a 7-8 segmented thorax and a 6-segmented abdomen.
		The antennules are biramous with both branches linear, the antennal expodites are scale-like.
		Unlike in the other malacostracan orders Decapoda, Amphipoda and Isopoda, the foremost thoracic legs are never modified as gnathopods.
	lucidcentral.com /keys/lwrrdc/public/aquatics/adcrust/html/SYNCARID.htm (165 words)

	Speleonectes lucayensis
		The trunk lacks tagmosis and is composed of numerous segments each bearing a pair of biramous, paddlelike swimming appendages.
		Evolutionary Origins: The large number of trunk segments, each with similar, laterally directed, biramous, swimming appendages, plus a combination of the other characteristics necessitated the erection of a new crustacean class, the Remipedia (Yager, 1981).
		Remipedes are believed to be the most primitive of living crustaceans.
	www.tamug.tamu.edu /cavebiology/fauna/remipedes/S_lucayensis.html (568 words)

	GEOL 331 Lectures 29-31: Arthropoda
		A telson into which a pair of biramous uropods are functionally incorporated.
		Note: these remain biramous, even though the gills are typically enclosed by the carapace.
		Thought to have gone extinct in Permian until living specimens found in Tasmania.
	www.geol.umd.edu /~tholtz/G331/lectures/331arthr3.html (908 words)

	Lecture 7
		appendages biramous (except for the first pair of antennae and derived forms)
		appendages are biramous, or modified from something that once was
		The biramous limb may have arisen from fusion of two segments, each with a uniramous limb.
	nas.cl.uh.edu /novotny/amh07.htm (1284 words)

	Arthropoda
		Locomotion commonly by lever action (unlike hydraulic action as in annelids).
		Uniramous (one leg per segment) or biramous (two legs per segment; endopodite and exopodite [gill branch]).
		One preoral appendage pair; one pair of weak gnathobases postorally; long series of biramous, postoral appendages; mandibles and chelae absent.
	www.ualr.edu /~ersc/Paleontology/Arthropoda.html (472 words)

	Appendages (from crustacean) -- Encyclopædia Britannica
		Form and function of external features > Appendages
		There is great diversity among the appendages of the Crustacea, but it is thought that all the different types can be derived either from the multibranched (multiramous) limb of the class Cephalocarida or from the double-branched (biramous) limb of the class Remipedia.
		A biramous limb typically has a basal part, or protopodite, bearing two branches, an inner endopodite…
	www.britannica.com /eb/article-33804 (723 words)

	Exam II Rescheduled
		In addition to this basic plan, the mandibulates (Crustacea, Uniramia) exhibit
		Lost or modified on some segments of crustaceans -- some appendages uniramous, some biramous, some triramous in certain groups
		Repeated, biramous appendages along entire length of body
	www.life.umd.edu /classroom/zool210/jensen/2Lectures/lecture15.html (565 words)

	Livid's Lividict - biramous (Site not responding. Last check: 2007-11-04)
		1 definition found From XDict English-Chinese Dictionary [xdict]: biramous 二支的
		1 definition found From Webster's Revised Unabridged Dictionary (1913) [web1913]: Biramous *\Bira"mous\**, a.
		1 definition found From The Collaborative International Dictionary of English v.0.48 [gcide]: Biramous *\Bira"mous\**, a.
	www.lividot.org /lookup/biramous.html (199 words)

	Trilobite
		I'll have to take into account triops' adaptations for low oxygen, high-temperature water, but I still think the gill surfaces of my trilobite oughta be bigger....Sometime in the next few days, I'm going to haul out the microscope and do some sketches of the limbs of my preserved triops.
		Perhaps a good high-resolution view of a biramous limb will make apparent to me what I ought to do to get the trilobite legs to look correct....
		Approx 2MB,.mov format, Sorensen 3 compression, Quicktime 5 or better required
	www.nickjainschigg.org /Trilobite.html (1491 words)

Try your search on: Qwika (all wikis)