biramous

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biramous

[bī′rā·məs]

(biology)

Having two branches, such as an arthropod appendage.

References in periodicals archive ?

Immediately after hatching, the first free-living zoea larval stage is characterized by three pairs of well-developed thoracic biramous maxillipeds located immediately posterior to the cephalic maxillary appendages (St.

Embryonic Development in the Peppermint Shrimp, Lysmata boggessi (Caridea: Lysmatidae)

Segments 2-9 with biramous parapodia, with 5-12 simple chaetae per rami, and filiform and smooth interramal cirri.

Anelidos intersticiales de la costa Caribe de Colombia

Karliella differs fundamentally from these by having male surstyli that are deeply incised and biramous.

Proposal of Karliella gen. n. for the Afrotropieal 'Pegomya' sexpunctata Karl, 1935 (Diptera: Anthomyiidae), a possible kleptoparasite of dung-breeding beetles

First setiger uniramous, thereafter biramous with a relatively broad gap between setal fascicles (Figure 1d).

A new species of cossuridae (annelida: polychaeta) from Venezuela/Una nueva especie de cossuridae (annelida: polychaeta) de Venezuela/Uma nova especie de cossuridae (annelida: polychaeta) da Venezuela

Sex was determined by the presence of biramous pleopods in females and uniramous pleopods in males (Morgan 1980).

Population assessment of the pacific green spiny lobster Panulirus gracilis in Pacific Panama

The first pedigerous somite is cephalically incorporated and the three succeeding free pedigerous somites each bear a pair of biramous swimming legs.

Two new species of Monstrillopsis Sars (Crustacea: Copepoda: Monstrilloida) from the White Sea and Norway, with comments on M. dubia Scott

3N) Buds biramous; much longer than that of 2nd stage.

Larval development of the sidestriped shrimp (Pandalopsis dispar Rathbun) (Crustacea, Decapoda, Pandalidae) reared in the laboratory

Four pairs of biramous swimming legs composed of a precoxa, coxa, basis, exopod, and endopod; with plumose setae on all exopods, endopods, coxae, and bases.

Argulus ambystoma, a new species parasitic on the salamander Ambystoma dumerili from Mexico (Crustacea: Branchiura: Argulidae). (1)

Crab sex was determined as follows: females have a gonopore on the coxa of each third pereopod and elongated biramous pleopods, whereas males have a gonopore on the coxa of each fifth pereopod and short uniramous pleopods.

Sexual differences in life history and resource utilization by the hermit crab

The biramous antennules of decapods, in particular, are considered the primary sensory organs for olfactory chemoreception and exclusively contain, on the outer flagellum, the aesthetasc sensilla, each innervated by hundreds of olfactory receptor neurons (Schmidt and Mellon, 2011 ).

Antennular morphology and contribution of aesthetascs in the detection of food-related Compounds in the shrimp palaemon adspersus Rathke, 1837 (Decapoda: Palaemonidae)

Segments 4 and 5 of the male abdomen are partly fused, whereas the mature female abdomen is broad with free segments and biramous pleopods on segments 2-5.

Biology of the vent crab Bythograea thermydron: a brief review

All thoracic parapodia biramous; thoracic postchaetal lobes of both rami inconspicuous.

Orbiniidae polychaetes (Polychaeta: Scolecida) from Coiba Island, eastern Pacific of Panama, with description of a new species

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