of the Genus Pandalus 



59 • 



Fishery and Marine Invest, i. no. 3, p. 28, pi. viii. figs. 5, 6 (1899) 

 (larval stages). 



Pandalus platyceros, Brandt, Nordgaard, Hydrogr. and Biol. Invest. 

 Norwegian Fjords (Bergens Museum), 1905, p. 187. 



Pandalus leptocerus, var. bonnieri, Appellof, Meeresfauna von Bergen, 

 Heft 2 & 3, Dekapoden Crustaceen, p. 118 (1906) ; Wollebaek, Ber- 

 gens Mus. Aarbog, 1908, no. 12, p. 61 ; Kemp, Journ. Mar. Biol. 

 Assoc, viii. no. 5, p. 410 (1910). 



In addition to the characters of this species given in my 

 former paper (I. c), the following require mention as distin- 

 guishing it from P. leptocerus. 



The surface of the carapace and abdomen is smooth and 

 polished, without trace of rugosity, and with only a tew 

 minute scattered hairs, which, as a rule, are only conspicuous 

 near the lower edge on each side of the carapace. These 

 hairs are evenly distributed over the surface, not arranged in 

 rows as in P. leptocerus. 



The interval separating the first two spines of the rostral 

 crest (on the carapace) is usually much less than that sepa- 

 rating the second and third ; sometimes it is nearly equal to 

 it, but only in one specimen have I noted it as slightly 

 greater. As a rule, the third spine is behind the orbital 

 notch; I have never seen it distinctly in front. 



Fig. 1. 



Pandalus bonnieri, Caullery. Proximal part of rostrum (above) and 

 basal segment of antennule (below). 



The proximal tooth on the lower edge of the rostrum is 

 relatively short ; although sometimes a little longer than in 

 the specimen figured, its length is always much less than the 

 distance from its base to the upper edge of the rostrum (fig. 1). 



The basal lobe of the antennule (stylocerite) is very broad 

 and its anterior edge is evenly curved (fig. 1). 



