26: 



f s Terminal spine of antennal scale reaching nearly as far 

 forward as the distal end of the lamella. Sixth abdo- 

 minal somite almost four times as long as thick . 



t Carapace with one spine on each side 



(Stanley Kemp, 1. c, 1910, p. 146, PI. XXI, figs. 2, a and b.) 

 ^ d i Carapace without lateral spines. 

 (', Carapace longer than broad. 



/j On either side of the mid-dorsal line of the carapace are 

 two lobe-like folds, that anteriorly are well-defined 

 and rounded. Rostrum very broad, abruptly truncate 



at apex 



(Stanley Kemp, 1. c, 1910, p. 151, PI. XXI, figs. 3,« and b.) 



/„ Carapace without lobe-like folds on either side of the 

 middle line. Rostrum rather narrow with rounded apex 

 (Stanley Kemp, 1. c, 1910, p. 153, PI. XXI, figs. 5, a and b.) 



e 2 Carapace broader than long. Immobile finger of subchela 



formed of two teeth, closely juxtaposed and not articulated. 



f x Telson furnished at the apex with a long and slender 



tooth, flanked by a pair of plumose setae .... 



(Th. R. R. STEBBING, Annals South African Museum, XV, London, 191 5, 

 p. 71, PI. LXXIX.) 



ƒ-, The apex of the telson consists of a triangular plate 



with a minute spinule on either side and with two 



pairs of plumose setae arising from beneath it 



(Stanley Kemp, Memoirs Indian Mus., V, 1915, p. 261, PI. XIII, fig. 8.) 



^£ 4 Mid-dorsal line of carapace without spines. 



d x Rostrum well-developed, as long as the eyes, apex broad, 



squarely truncate 



d„ Rostrum exceedingly small, consisting merely of a small 



flat, triangular, acute prolongation of the median part 



of the carapace, so that the eyes are contiguous 



(Stanley Kemp, 1. c, 1916, p. 372, PI. VIII, fig. 6.) 



^ ó„ Abdomen with at least the third and following somites carinated. 



c l Carapace with no spine in the mid-dorsal line. Three lateral 



keels, of which the first and the third arë unispinose 



(W. STIMPSON, Proc. Acad. Xat. Sciences Philadelphia, 1S60, p. 25.) 



c i Mid-dorsal line of carapace with one spine. Three lateral 



keels, the first without a spine, but abruptly notched near 



its middle point, the second with a spine and a notch, 



third unarmed 



Si \xi,];v Kemp, 1. c, 1911, p. 6, PI. II, figs. 11 — 14.) 



1 Mid-dorsal line of carapace with three spines. 



modestus de Man 

 trispinosits Hailstone ^ 



fasciatus (Risso) 



ucglcctits (G. O. Sars) ■^-- 



mcgalccheir (Stebbing) 



Hcndcrsoni Kemp 



candidus Kemp Q 



parvirostris Kemp 



carinicauda (Stimps. 



sabsechota Kemp 



