Ventiella Barnard & Ingram 1990

Lowry, J. K. & Kilgallen, N. M., 2014, A generic review of the lysianassoid family Uristidae and descriptions of new taxa from Australian waters (Crustacea, Amphipoda, Uristidae), Zootaxa 3867 (1), pp. 1-92 : 84

Ventiella Barnard & Ingram 1990

( Fig. 51 )

Ventiella Barnard & Ingram, 1990: 31 .

Type species. Ventiella sulfuris Barnard & Ingram, 1990 , original designation.

Included species. Ventiella includes 1 species: V. sulfuris Barnard & Ingram, 1990 .

Diagnostic description. Antenna 1 peduncle article 1 without anterodistal lobe; accessory flagellum forming cap covering callynophore. Antenna 2 brush setae [unknown]. Mandible molar a reduced column with convex, fully triturating surface. Maxilla 1 outer plate a well developed 7/4 crown. Maxilla 2 inner plate subequal to or slightly longer than outer plate. Gnathopod 1 subchelate; coxa 1 reduced, significantly shorter than coxa 2, tapering distally; ischium short (length less than 2 × breadth); carpus long (length 2 to 4 × breadth); propodus margins subparallel. Uropod 2 inner ramus not constricted. Telson notched .

Remarks. Only Ventiella and Galathella have a subchelate gnathopod 1 with a reduced tapering coxa. They differ significantly in the the relative lengths of the maxilla 2 plates (subequal in Ventiella , inner plate slightly to significantly shorter in Galathella ) and in the telson (notched in Ventiella , moderately to deeply cleft in Galathella ).

Distribution. Pacific Ocean. Galapagos vents ( Barnard & Ingram, 1990).

Figures

FIGURE 51. Ventiella sulfuris Barnard & Ingram, 1990, all parts from male, female, AM P.40541, from Galapagos Rift Vent, east Pacific Ocean; except habitus, after Barnard and Ingram (1990). Scale bars: gnathopods, pereopods, 0.5 mm; remainder, 0.1 mm.