CRUSTACEA MALACOSTRACA. IV. 6 1 



53. Diastylis scorpioides Lepechin. 



17S0. Oniscus scorpioides Lepechin, Acta Acad. Sc. Imp. Petropol., 1778, vol. I, p. 148, Tab. 8, fig. 2. [teste 



Stebbing]. 

 1841. Cuma Edw'ardsii Kroyer, Naturh. Tidsskr. B. Ill, p. 504, 531, Tab. V, Fig. 1 — 16. 

 184b. Kroyer, Naturh. Tidsskr. Ny Raekke, B. II, p. 128, 207, Tab. I, Fig. 1, 1*, .;, 5, 



9—14. 

 brevirostris Kroyer, I.e. p. 174, 208, Tab. II, Fig. 6 [<?]. 



1849. Edwardsii Kroyer, in Gaimard; Voy. en Scand., Crust., PI. IV, fig. 1, a — o. 



brevirostris Kroyer, 1. e. PI. Y A, fig. 1, a — t. [<J]. 



Iicjoo. Diastylis scorpioides G. O. Sars, Account, III, p. 58, PI. XLIV. 



1911. Stappers, Camp. arct. Due. d'Orleans, Crust. Malac. p. 112, PI. IV, figs. 2 — 6, 



11, 12. 

 1913. Stebbing, Das Tierreich, 39. Lief. p. 102. 



Occurrence. Taken by the "Ingolf" at a single station. 



Entrance of Brede Fjord, West Iceland: Stat. 86: Lat. 65°03' 6 N., Long. 2347'^ W., 76 fatli., 



1 specimen. 



D. scorpioides is common at West Greenland. Ortmann recorded it from Barden Bay, 20 — 25 fath., 

 and Robertson Bay, 5 — 15 fath., both places at ab. Lat. 77°3o' N., and besides from Granville Bay, ab. Lat. 

 77° N., 20 — 30 fath.; Ohlin mentioned it from Murchison Sound, ab. Lat. 77°3o' N., 50 fath.; Caiman from 

 Upernivik, Lat. 72 ''47' N., 13 fath. In 1888 the present author enumerated it from ten localities at or off 

 West Greenland between Lat. 71 c To'N., and Lat. 63°35'N., depths from 8 — 10 to 200 fath. ; in 1890 Prof. Bergendal 

 secured it at two new localities, viz. Jakobshavn, Lat. 69°i3' N., 10 fath., and Egedesminde, Lat. 68°42' N.; 

 later K. Stephenseu recorded it from Nordre Stromfjord, ab. Lat. 67°4o' N., depths from 4 — 11 and down to 

 27 fath., and from Bredefjord, ab. Lat. 6o°45' N., together with the more southern Skovfjord, depths from 

 5 — 8 and down to 120 — 153 fath. 



On the northern side of Iceland this species has been taken by "Beskytteren" in Skjalfandi, 21 fath., 

 and by the "Thor" off Husavik, 42 — 53 fath.; on the east side of Iceland, by Dr. A. C. Johansen in Bakke 

 Fjord, 20 — 28 and 52 — 43 fath., and in Loons Yik, 40 fath. ; by Mag. R. Horring in Faskruds Fjord, 50 — 20 fath. 



The Unci Amdrup Expedition secured it at Jan Mayen, 50 — 60 and 55 fath., — at this island it has 

 been taken by Prof. Nathorst in 7 — 11 and 12 fath. (Ohlin) — and in four places at East Greenland between 

 Lat. 69°3o'N., and Lat. 74°I7' N., viz. Cape Dalton, 9 — 11 fath.; Turner Sound, 3 fath.; Hurry Inlet, 10 

 fath. and 7 — o fath., finally Cape Borlase Warren, 10 fath. It is on the whole common at northern East Green- 

 land; in 1913 K. Stephensen puts together the statements published by Ohlin, H. J. Hansen and himself; 

 he enumerates ten places between Lat. jo°2j' N. and Lat. 76 : 45' N., and in most of these localities the depths 

 were between 1 and 10 fath., the greatest depth 18 — 32 fath. 



Distribution. Found at several places in North Norway, going southwards to Salten Fjord, 



ab. Lat. 67' 4 N. (G. O. Sars). 1 Furthermore taken at some places on the east side of Spitzbergen, in 7 — 8 



' In 1913 K. Stephensen wrote: "Helgoland (Ehrenbaum, i8y5)». Ehrenbaum has in his faunistic list (1S97) not D. 

 scorpioides, and it certainly does not live at Heligoland; an error must exist, but its origin may be difficult to trace. 



