abranchiate


Also found in: Dictionary, Thesaurus.

abranchiate

[ā′braŋk·ē·ət]
(zoology)
Without gills.
References in periodicals archive ?
Comparison: New material mostly corresponding with original description and paratype examined (Day 1957); in the paratype the last 12 chaetigers are abranchiate, falling within the range observed in the new material, posterior inferior companion chaetae are not mentioned in the description but are present in both the new material and the paratype, although they are present on fewer chaetigers in the latter.
Anterior fragments regenerate only the pygidium and the 6 to 12 abranchiate setigers of the tail.
At the same time, we might have to reconsider the early proposal by Pruvot & Racovitza (1895:422) about the specific characters such as pigmentation pattern, length of antennae, their relative articulation, start of branchiae and their maximal filament number (size-dependent), type of pectinate chaetae, blade relative size features in compound falcigers, form and shape of the subacicular hooks, number of abranchiate posterior chaetigers, and number and length of anal cirri.