A review of the hyperiidean amphipod superfamily Lanceoloidea Bowman & Gruner, 1973 (Crustacea: Amphipoda: Hyperiidea) Author Zeidler, Wolfgang text Zootaxa 2009 2009-02-04 2000 1 117 journal article 1175­5334 Lanceola chelifera Vinogradov ( Fig. 16 ) Lanceola chelifera Vinogradov, 1970: 388–391 , figs 3 & 4. Vinogradov et al . 1982: 75–77 , fig 21. Type material. This species was described from five specimens caught in the Kurile-Kamchatka region of the North-west Pacific. Female, 9.5 mm , Vityaz Stn. 5612 [45º23’– 45°34’N 153º04’– 152º48’E ]; 0–5850m , July / Aug. 1966 . Male , 9 mm , Vityaz Stn. 5617 [45º44’– 45 º47’N 153º45’– 153º33’E ], 0–4000 m , 4–7 Aug. 1966 . Two juveniles, 3.5 & 5.5 mm , Vityaz Stn. 5626 [ 45º11’N 152º28’E ]; 3000–4000 m , 23–24 Aug. 1966 . Female , 9 mm , Vityaz Stn. 5631 [43º43’– 43º47’N 149º39’– 149º56’E ]; 5240 m , 2–3 Sep. 1966 . The female from Stn. 5612 is described and illustrated by Vinogradov (1970) . The ZMMU has two lots labelled “ Holotype ” and Paratype on the microscope slides ( Mb –1040 & Mb –1041) but they should be regarded as syntypes because type material was not designated in publication . FIGURE 16 . Lanceola chelifera ; syntype female 9.5 mm, N.W. Pacific, Kurile Kamchatka region ( Vityaz Stn. 5612), ZMMU Mb–1040. Scale bars = 0.5 mm. Redrawn from Vinogradov (1970) . Diagnosis. According to Vinogradov (1970) . Only known from the above five specimens ; females of length up to 9.5 mm and males up to 9.0 mm. Habitus like L. clausi . Head without rostrum. Eyes very small, reniform, without crystalline cones. Antennae 1 as long as head and first pereonite (?) combined; terminal article as long as preceding two combined. Antennae 2 relatively short, slightly longer than A1. Pereopod 3 similar to, but marginally shorter than P4; with relatively broad articles (except for propodus and dactylus); basis length 3x merus; carpus almond-shaped, twice as long as maximum width, posterior margin with row of robust setae, length 2.3x merus; propodus relatively narrow, length about 0.8x carpus; dactylus length 0.4x propodus. Pereopod 5 with subchela formed by dactylus and setose palmate margin of propodus; slightly shorter than P4; basis length twice merus; merus length 1.5x carpus; propodus length twice carpus, expanded distally, without hood for dactylus, palmate margin armed with three pairs of strong setae and distally with row of shorter setae; dactylus only marginally retractile, curved, pressed against palmate margin of propodus, reaching middle of propodus. Pereopod 6 slightly longer than P5, similar in length to P3; basis length almost twice merus; carpus slightly longer than merus; propodus as long as basis, with spoon-shaped depression housing small, curved dactylus. Pereopod 7; length 0.7x P6; articles of similar proportions to P6 but propodus relatively shorter. Peduncle of U1 does not exceed limit of peduncle of U2. Uropod 3; peduncle and inner ramus relatively narrow; peduncle width 0.5x length. Telson pointed; length almost 0.7x peduncle of U3. Colour of living specimens not recorded. Remarks. I have not seen any specimens of this species but accept its validity based on the observations of Vinogradov (1970) . This species is readily distinguished by the subchelate character of pereopods 3–5. It is one of the few species of Lanceola in which the dactylus of pereopod 5 is not fully retractile and hooded. It is most similar to L. sphaerica in the subchelate character of pereopod 5 but in the latter this character is not as well developed and the dactylus is only partly hooded, and pereopods 3 & 4 are much weaker and are not subchelate. . Distribution. Only known from the Kurile-Kamchatka region of the Pacific Ocean , from five specimens as detailed above .