2io CRUSTACEA MALACOSTRACA. III. 



at Vard0 and Vadso, Finmark (G. O. Sars). It is common at Spitzbergen on M. oculata (G. O. Sars, 

 Hoek), is known from Kostin Schar, south-west coast of Novaya Zemlya (Stuxberg, H. J. Hansen) and 

 from Franz-Joseph Land (T. Scott), at both places on M. oculata. North of the New Siberian Islands 

 larvae in both stages referred to this form were taken in Plankton samples (G. O. Sars). Finally taken 

 at five places off the east coast of Baffin Laud, between Lat. 7348' N. and Lat 6456' N., on M. ocu- 

 lata (Ohlin), and at Labrador (Packard). 



k 



149. Dajus profundus n. sp. 

 (PL XV, figs. 153-15 e). 



Female. Intermediate between D. mysidis Kr. and D. siriellce G. O. S. - The body (figs. 

 15 a 15 b) somewhat oblong-cordiform in outline; the area comprising head and thoracic legs is some- 

 what remote from the emarginate front margin of the body. Seen from above (fig. 15 a) the abdomen, 

 which is almost one-third as long as the remainder of the body, is proportionately narrow and com- 

 prises four distinct segments; the last segment is a little longer than broad, and terminates in a pair 

 of very narrow, nearly linear uropods, which are as long as the segment Length (in the median 

 line) 1-47 mm. 



Male. Not fully three and a half times as long as broad (fig. 15 c). Head fused with the first 

 thoracic segment; both combined as long as the sum of the two following segments and somewhat 

 quadri-lateral. Front margin of the head long, transverse; the antero-lateral angles broadly rounded; 

 the lateral margins somewhat diverging backwards. Antennulse (fig. 15 d) rudimentary. Antennae 

 rather long, reaching the posterior margin of third thoracic segment, g-jointed; the second, the fifth 

 and the three distal joints longer than the others. Proboscis broad at the base. The hand of the 

 thoracic legs very thick (fig. 15 e). Abdomen as long as the sum of the three posterior thoracic seg- 

 ments and half of the fourth, somewhat less than twice as long as broad, tapering considerably post- 

 eriorly, and the end is truncate, with scarcely any vestige of uropods. -- Length 0-42 mm. 



Remarks. The female differs from D. mysidis especially in having the abdomen much more 

 slender and terminating in long and very slender uropods. The male differs in the shape of head and 

 abdomen and in the length of the antennae. 



Occurrence. Not taken by the "Ingolf", but found in the marsupium of a specimen of Par- 

 amblyops rostrata Holt & Tatt captured by the "Thor" at the following place. 



South-West of the Faeroes: Lat 6ii5' N., Long. 935' W., 463515 fath., young-fish trawl with 



1700 m. wire out; i spec. 



HolophryxUS Richardson. 

 In later years two species have been found in our area. 



150. Holophryxus Richardi Koehler. 



! 1911. Holophryxus Richardi Koehler, Bull, 1'Inst Ocean. Monaco, No. 196, p. 23, figs. 15 17. 



! 1912. Stephensen, Vid. Medd. Naturh. Foren. Kjobenhavn, Vol. 64, p. 108, figs. 910. 



