Family ENDEVOURIDAE Lowry & Stoddart, 1997

Endevoura mirabilis

© Copyright R.T. Springthorpe.

Museums

Regional Maps

Introduction

The Endevouridae include two genera of unusual benthic lysianassoids which have strongly prehensile third pereopods. Of the two genera, Endevoura appears to be endemic to the Australian area, but Ensayara is more widespread.

Diagnosis

Head exposed or partially concealed; as long as deep or deeper than long; rostrum absent; eyes ovoid or reniform. Body laterally compressed; smooth. Antenna 1 subequal to antenna 2; peduncular article 1 longer than article 2; article 2 subequal to or longer than article 3; article 3 shorter than article 1; primary flagellum 5- or more articulate; callynophore present or absent. Antenna 2 short; flagellum shorter than peduncle; less than 5-articulate. Mandible incisor smooth; lacinia mobilis absent; molar non-triturating, fully setose. Maxilla 1 inner plate weakly setose apically. Maxilliped inner plates well developed; outer plates small. Coxae 1–4 longer than broad, overlapping. Coxae 1–3 none vestigial. Gnathopod 1 not sexually dimorphic; subequal to gnathopod 2; simple; coxa smaller than or subequal to coxa 2; carpus shorter than propodus. Gnathopod 2 not sexually dimorphic; subchelate or chelate; subequal to but not hidden by coxa 3; ischium long; carpus long, longer than propodus; dactylus minute. Pereopod 3 subchelate or chelate, propodus enlarged; coxa longer than broad; carpus shorter than or subequal to propodus, not produced. Pereopod 4 coxa larger than coxa 3, with well developed posteroventral lobe; carpus shorter than or subequal to propodus, not produced. Pereopod 5 subequal to pereopod 6; coxa smaller than coxa 4, with ventrally produced posterior lobe; basis expanded, subovate, with posteroventral lobe; carpus linear. Pereopod 6 subequal to pereopod 7; basis expanded. Pereopod 7 subequal to pereopod 5; basis expanded. Urosomite 1 longer or much longer than urosomite 2. Uropods 1–2 apices of rami without robust setae. Uropod 3 biramous; peduncle short or long; rami lanceolate; outer ramus subequal to or longer than peduncle; inner ramus not apically setose. Telson laminar; entire; longer than broad; dorsal and apical robust setae absent.

General References

Lowry, J.K. & Stoddart, H.E. 1997. Amphipoda Crustacea IV. Families Aristiidae, Cyphocarididae, Endevouridae, Lysianassidae, Scopelocheiridae, Uristidae. Memoirs of the Hourglass Cruises 10(1): 1-148

History of changes