263 



-Vj Lateral faces of carapace with five spines, placed on two 



carinae, the upper hearing three spines, the lower two. spinosus (Leach) 

 (Stanley Kemp, 1.c, 1910, p. 160, PI. XXI, figs. 8,a—d.) 



•^d s Lateral faces of carapace with more than five spines. 

 e x First lateral keel of carapace reaching to near the postenor 

 edo-e; between it and the mid-dorsal line another row 



of very small teeth echinulatus (M. Sars) 



(Stanley Kemp, 1. c, 1910, p. 144, PI. XXI, figs. j,a—J.) 



, First lateral keel reaching only about three-fourths the length 

 of the carapace backward ; 110 small teeth between it and 



the mid-dorsal line victoriensis Fulton and Grant 



(S. W. Fulton and F. F. Grant, 1. c, p. 65, PI. X, fig. 2.) 

 ^a, Outer margin of antennal scale denticulate. 



At least the third and following somites of the abdomen are 

 carinated. 

 b x Outer margin of antennal scale armed with a single spine in 

 addition to the terminal spine. 

 (\ Additional spine of outer margin of antennal scale placed 



near the base, at the end of the proximal quarter . . incisus Kemp 

 c s Additional spine of outer margin of antennal scale placed 



at the end of the proximal third or near the middle. 

 ^ </j Mid-dorsal line of carapace armed with two stout spines. 

 Of the ridges on the lateral faces of the carapace only one, 

 the foremost of the second lateral carina, is produced 



anteriorly in the form of a spine sculptus (Bell) 



(Stanley Kemp, 1. c, 1910, p. 148, PI. XXI, figs. 6, a and b.) 



</, Micl-dorsal line of carapace with one spine or with no 

 spine at all. 

 e. Of the lateral carinae of the carapace the undermost ends 

 in a spine. 

 Propodus of subchela of anterior legs 3,2-times as long 



as wide in the middle angustirostris de Man 



e„ Of the lateral carinae of the carapace the undermost is 

 unarmed. 

 Propodus of subchela of anterior legs 2,5-times as long 



as wide in the middle Kempii de Man 



b, Outer margin of antennal scale armed with a series of spinules. 



c x Carapace carinated in the mid-dorsal line and with four 



lateral carinae, all sharp, prominent and partly produced 



in the ferm of a spine , japonicus Doflein 



c„ Carapace without spines and without lateral carinae . . . Lowisi Kemp 

 (Stanley Kemp, 1. c, 1916, p. 361, PI. VIII, fig. 2.) 



