Paralamprops margidens Day, 1978

Paralamprops margidens Day, 1978: 151–154, fig. 5A–P.

Type material. Holotype: SAMC A15721, male. Not seen.

Diagnosis. Carapace without lateral ridges, marginal carina toothed. Telson 0.8 uropod peduncles, with 3 terminal setae, central seta longest. Uropod peduncles with 3 medial setae. Adult male unknown.

Depth. 800 m.

Distribution. South Africa, 34°25’S, 17°45’E.

Remarks. The most similar species is Paralamprops poorei, which also has a strongly toothed marginal carina. However, in P. poorei there are no teeth on the dorsal crest, the telson has five pairs of lateral setae, and the uropod peduncle has 10–11 setae medially, while in P. margidens there is a toothed dorsal crest, the telson has four pairs of lateral setae, and the uropod peduncle has three setae medially.

The most similar species of Platytyphlops are species that also have a toothed or serrate marginal carina, P. carpusserratus, P. corollifera, P. girardi and P. semiornatus . However, in P. carpusserratus, P. corrolifera, and P. girardi, the carapace is close to circular or square in the dorsal view, while in Paralamprops margidens the carapace is much longer than wide in the dorsal view. While Paralamprops semiornatus is also longer than wide in the dorsal view, it can be differentiated by the nearly equal in length telson terminal setae; in P. margidens the central terminal seta on the telson is much longer and stouter than the outer pair.