131 



to be situatod uii the carapa(?e, i. v. 'm 6,6 per cent. The Ist 

 tootli of th(> iip])ei' margin is one and a half to two-times as far 

 distant froni the postorior margin of the carapace as from the 

 anterior. Only in 2 specimens from Brixham the h)wer margin 

 was armed witli foiir teetli and in the ah-eady described spe- 



12 



cimen from the same locality with the formula — , like also in a 



male from the Oosterschelde, the lower margin presented two 

 teeth, so that three teetli prove to occiir generally. As regards 

 the form of the rostrnm, this variety resembles the typical spe- 

 cies, though the upper margin appears often quite straight with 

 the apex trending not at all upwards (Fig. lo, lp). 



In the niiddle-sized specimens from Brixham the straight-lined 

 rostrum is often obliquely directed upwards from the orbital 

 margin to the tip (Fig. Iq). 



The small red dots with which the rostrum and other parts of 

 the body of the Scandinavian specimens proved to be sometimes 

 marked, seem to want in the variety intermedia (Stanley Kemp, 

 1. c. p. 129), though it is possible that these dots disappear by 

 the influence of the spirits in which the specimens are preserved ; 

 this difterent inHuence on the specimens is proved by the fact 

 that all the specimens from the Oosterschelde are straw- or cream- 

 coloured, those from the English Channel yellow-whitish, those 

 from Brixham like also the specimens from Svendborg Sund gold- 

 yellow. 



As regards the antennal and branchiostegal spines and the 

 abdomen with. the caudal fan the variety infer»iedi(( fully agrees 

 with the typical form. 



Like in the latter the antennular peduncle appears, with regard 

 to the antennal scale, somewhat longer in the male than in the 

 female and the shorter ramus, the coalesced portion included, 

 appears just as long as the peduncle. 



While in the typical form the coalesced portion appears as often 

 a little longer as a little shorter than the free portion, in the 

 variety 'nifi'nncditi tlie coalesced porti()n is generally distiurfJi/ 



