58 



CRUSTACEA MALACOSTRACA. 



specimens with the dorsal spine, and they all came from loo to 175 fm. depth in Baffin Bay. Later 

 I have seen several specimens both males and females taken at Egedesminde, which belong to S. 

 gihba; one of these was a gigantic female 80-5 mm. long, the abdominal process in which is a thick, 

 pointed, slightly crooked spine. Concerning the numerous specimens from the Kara Sea I wrote in 

 "Dijmphna-Togtet", jj. 238: "Practically all the specimens belong to the form Hipp, gibba Kr., yet the 

 prominent thickening on the dorsal side of the 3'"'^ abdominal segment is usually much stronger than in 

 Kroyer's specimens and runs out in the females into a small, in the males into a very considerable 

 hook. It may be remarked that some specimens of this species are obviously large, but that the strong 

 development of the dorsal spine on the ^^^ abdominal segment is throughout much more characteristic for 

 the representatives of this species from the Kara Sea than the absolute length of the animal". One of 

 the largest females from the Kara Sea measures 74 mm., thus somewhat smaller than the giant from 

 Egedesminde, and the dorsal spine in the latter is equal in size to the largest in the females from the 

 Kara Sea, whereas the dorsal spine in males from the Kara Sea is longer, more slender and more bent 

 than in any specimen from Greenland, though a male from 118 fm. at West Greenland is considerably 

 larger than the same sex from the Kara Sea. Vanhoffen however states that he has had a female 

 with eggs taken in Karajok Fjord which was 103 mm. (he gives lower down 108 mm.) in length. 



52, Spirontocaris spinus Sow. 



1806. Cancer spinus Sowerby, Brit. Miscellany, p. 47, PI. XXIII. 

 ! 1842. Hippolyte Sowerbei, Kroyer, Kgl. D. Vid. Selsk. raath.-naturv. Afh., Niende Del, p. 298, Tab. II, 



Fig- 45-54- 

 1882. — spinus, Hoek, Nied. Arch. f. Zool., Supplb. I, Crustaceen, p. 15, Taf. I, Fig. 4— 7. 



! 1899. — — Birula, Ann. Mus. Zool. de I'Acad. Imp. St.-Petersbourg, 1899, I, p. 30, Fig. i. 



Occurrence. The "Ingolf" has taken this species at 5 localities: 



Baffin Bay: St. 33: 67° 57' N. L., 55° 30' W. L., 35 fm., temp. o-8°; 42 spec. 



Davis Straits: - 29: 65° 34' — 54° 31' — 68 — — 0-2°; 4 — 

 — — - 34: 65° 17' - 54° 17' - 55 - - ?; 15 spec. 



North-West coast of Iceland: Dyre Fjord, i spec. 



North of Iceland: St. 127: 66" 33' N. L., 20° 05' W. L., 44 fm., temp. 5-6°; 6 spec. 



In Malac. Groenl. I have given a large number of localities for it; the most northerly is 8i°44' 

 N. L. on Grinnell Land, also along Greenland itself from Cape York to 6o°43'N. L.; concerning the 

 depth I wrote: "it is not rarely found in shallow water from ca. 4 fm. and outwards, is common and 

 well-developed in 20 — 50 fm., and has been taken not a few times at a considerable depth, from 80 to 

 140 fm., but the statements of 200 to 240 fm. require further confirmation". Later observations have 

 not extended this knowledge; Ohlin and Ortmann show, that the species is common between 76° and 

 79° N. L. in 5 to 45 fm. — At East Greenland one specimen was taken at Angmagsalik (Kruuse and 

 i=" Amdrup Exp.), and it is given from more to the north on this coast, viz. 72° 45' N. L. and 74\'2N.L., 

 in respectively 18 — 32 fm. and 42 — 33 fm. (Ohlin). It has been taken at Jan Mayen in ca. 53 fm. 

 (Koelbel). 



