Family WANDINIDAE Lowry & Stoddart, 1990

Wandin griffini

© Copyright from Lowry & Stoddart 1990: fig. 1.

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Introduction

The Wandinidae are a small Indo-Pacific family of lysianassoid amphipods represented by two genera (Pseudocyphocaris Ledoyer, 1986 and Wandin Lowry & Stoddart, 1990) and four species. They are currently known only from Madagascar, Papua New Guinea and north-eastern Australia. The Australian fauna is represented by a single species in the genus Wandin; members of Pseudocyphocaris are recorded from Madagascar and Papua New Guinea. According to Lowry & Stoddart (1990) Wandinidae and Amaryllididae are sister taxa. There is evidence to suggest that wandinids are commensals on colonial tunicates. Keys to genera and species are provided in Lowry & Stoddart (1990).

Diagnosis

Head deeper than long; rostrum absent; eyes ovoid. Body laterally compressed; smooth. Antenna 1 subequal to antenna 2; peduncular article 1 longer than article 2; article 2 shorter than article 3; article 3 shorter than article 1; accessory flagellum present; primary flagellum 5- or more articulate; callynophore present or absent. Antenna 2 short; article 3 produced into large hook-like process; flagellum shorter than peduncle; less than or more than 5-articulate. Mandible incisor smooth; lacinia mobilis present on left side only; molar absent. Maxilla 1 inner plate weakly setose apically; palp 1-articulate. Maxilliped inner plates well developed; outer plates very large. Coxae 1–4 longer than broad or broader than long, overlapping; coxa 1 vestigial or coxae 1–3 vestigial; coxa 4 immensely broadened. Gnathopod 1 not sexually dimorphic; subequal to gnathopod 2; simple; coxa vestigial; carpus subequal to propodus. Gnathopod 2 not sexually dimorphic; subchelate or chelate; coxa subequal to but not hidden by coxa 3; ischium long; carpus long, longer than propodus; dactylus minute. Pereopod 3 coxa vestigial or longer than broad; carpus subequal to propodus, produced anteriorly. Pereopod 4 coxa larger than coxa 3, with well developed posteroventral lobe; carpus subequal to propodus, not produced. Pereopod 5 subequal to pereopod 6; coxa smaller than coxa 4, without posterior lobe; basis linear, subrectangular, without posteroventral lobe; carpus linear. Pereopod 6 subequal to pereopod 7; basis slightly expanded. Pereopod 7 subequal to pereopod 5; different in structure to pereopod 6; basis expanded. Urosomite 1 much longer than urosomite 2. Uropods 1–2 apices of rami without robust setae. Uropod 3 biramous; peduncle short; rami lanceolate; outer ramus shorter than or subequal to peduncle; inner ramus not apically setose. Telson laminar; entire; longer than broad; dorsal and apical robust setae absent.

General References

Ledoyer, M. 1986. Crustacés Amphipodes Gammariens familles des Haustoriidae à Vitjazianidae. Faune de Madagascar 59(2): 599-1112

Lowry, J.K. & Stoddart, H.E. 1990. The Wandinidae, a new Indo-Pacific family of lysianassoid Amphipoda (Crustacea). Records of the Australian Museum 42(2): 159-171

History of changes