Clessidra tinkerensis ( Kunkel, 1910 ) Krapp-Schickel & Vader, 2009

Krapp-Schickel, Traudl & Vader, Wim, 2009, On some Maerid genera (Crustacea, Amphipoda, Maeridae) collected by the Hourglass Cruises (Florida). Part 1: Genera Anamaera, Ceradocus, Clessidra gen. nov., Jerbarnia, Maera, Meximaera, with a key to world Ceradocus, Journal of Natural History 43 (33 - 34), pp. 2057-2086 : 2075-2077

Clessidra tinkerensis ( Kunkel, 1910) nov. comb.

( Figure 7 ) Maera tinkerensis Kunkel, 1910: 49–51 , fig. 18; Lazo-Wasem and Gable 1987: 322–323, fig. 1-2; Ruffo et al. 2000: 27, fig. 18.

Type locality

Bermuda.

Material examined

FSBC I 44870: 1 male slide, 1 female slide; 37 m; dredge; 5 July 1967; 26°24′ N, 82°58′ W . FSBC I 44872: 1 adult; 37 m; dredge; 6 December 1966; 26°24′ N, 82°58′ W . FSBC I 45589: slide; 73 m; dredge; 9 October 1966; 27°37′ N, 84°13′ W . FSBC I 45595: slide, 2 adults; 55 m; dredge; 13 October 1966; 26°24′ N, 83°22′ W . FSBC I 45660: 3; 55 m; 20 foot (6 m) balloon trynet; 15 November 1967; 26°24′ N, 83°22′ W .

Length

10 mm.

Features for regional diagnosis

Gn2 are strikingly similar to Ceradocus sheardi . However, all metasome and urosome segments are dorsally and posteroventrally smooth. Telson lobes with distal excavation (versus C. sheardi ), robust seta not longer than telsonic tip (versus C. sheardi clearly longer).

Distribution

Bermuda ( Kunkel 1910; Lazo-Wasem and Gable 1987; Ruffo et al. 2000). Now also Florida, Gulf of Mexico.

Ecology

Sand, down to 73 m.

Figures

Figure 7. Clessidra tinkerensis male 10 mm, FSBC I 44870. Md, mandible; Mx1, maxilla 1; Mx2, maxilla 2; UL, upper lip; LL, lower lip; Gn1, gnathopod 1; Gn2, gnathopod 2; T, telson.