Menigratopsis Dahl, 1945

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 : 41

Menigratopsis Dahl, 1945

( Fig. 25 )

Menigratopsis Dahl, 1945: 2 .—J.L. Barnard, 1969: 349.— Just, 1976: 2.— Barnard & Karaman, 1991: 438 (key), 501.

Type species. Menigratopsis svennilssoni Dahl, 1945 , monotypy.

Included species. Menigratopsis includes one species: M. svennilssoni Dahl, 1945 .

Diagnostic description. Antenna 1 peduncle article 1 without anterodistal lobe; accessory flagellum with an elongate article 1 (at least twice as long as article 2) partially covering callynophore. Antenna 2 without brush setae. Mandible molar plate-like. Maxilla 1 outer plate with 10 well-developed setal-teeth in modified 7/4 crown. Maxilla 2 inner plate subequal in length to outer plate. Gnathopod 1 weakly subchelate, appearing simple; coxa 1 large, about as long as coxa 2, subrectangular with straight anterior margin; ischium short (length less than 2 × breadth); carpus long (length 2 to 4 × breadth); propodus margins tapering distally. Uropod 2 inner ramus not constricted. Telson moderately to deeply cleft.

Remarks. Based on the weakly subchelate gnathopod 1 with a long carpus and the moderately or deeply cleft telson Menigratopsis is similar to Cicadosa, Des and Parschisturella . It differs from these genera in its peculiar plate-like mandibular molar and maxilla 2 with the inner and outer plates subequal in length.

Distribution. North-east Atlantic Ocean.

Figures

FIGURE 25. Menigratopsis svennilssoni Dahl, 1945, male, 6.3 mm, ZMC, from the Öresund. Habitus, LM, G1, G2, U3 after Just (1976). Scale bars: MX1, MX2, 0.05 mm; gnathopods, 0.5 mm; remainder, 0.1 mm.