66 
(St. 15) 58? 08' N, 399 24' W. 500 m. wire, 26—5—1908. 2 spec. 
(St. 76) 63? 49' N, 589 277 W, 1300 m., 1300 m. wire, 23—6—1908. 1 spec. 
(St, 429) 63? 54' N, 53? 15' W, 988—1400 m. 8—6—1909. 1 spec. 
(St. 407—08) 649 14'N, 55? 55' W, 839 m. clay, 2—6—1909. 1 spec. 
Kemp (l. c. 1908 (1910) p. 42—43) has given.a synopsis 
of the characteristics of P. tarda Kråyer and P. princeps 8. J. 
Smith. Kråyer has published his description in Danish, and it 
seems that owing to this foreigners have not been able to read his 
description; otherwise Smith would probably not have founded P. 
princeps ås a new species. In order to show the great agreement 
in the descriptions of Kråyer and Smith, I have made the 
following synopsis of the most important characters. 
P. tarda Kråyer. |. P, princeps $. J. Smith. 
(Naturhist. Tidsskrift, ser. 2, (Report U.S. Fish Commission 
vol. 1, 1844—45, p. 453 seq.) for 1882 (1884), p. 381 seq.) 
1. "The carapace, which is about | 1. The pleon exclusive of the 
1/3 of total length or half as long | telson is about one half longer 
as the pleon including telson, is — than the carapace”, (Carapace 
very much compressed”. (From | 75 mm., pleon excluding the tel- 
Kråyer's fig. in Gaimard: | son 112 mm.). 
Voyage en Scandinavie, the car- 
apace is seen to be 39 mm., abdo- | 
men excluding telson 59 mm.). | 
2. "On the dorsum of the ca- | 2. "The dorsum of the carapax 
rapace is seen a sharp, but | is rounded except for about å 
smooth carina, which goes about | third of the length anteriorly, 
to the hinder edge of the cara- where it rises into a carina ter- 
pace, terminating anteriorly in  minating in a short, mucronate 
a little, mueronate and very much — and obliquely upturned rostrum 
compressed rostrum, that ....  overhanging, but  projecting 
projects a little the anterior edge | scarcelv as far forwards as the 
of the carapace”. front itself, which is prominent 
though rounded in outline as 
seen from above'. 
