30 



CRUSTACEA MALACOSTRACA. 



("Michael Sars", Ad. Jensen), several specimens, and 6i° 15' N. L., 9° 35' W. L., ca. 500 fm., several speci- 

 mens ("Thor" 1904). 



Distribution. The geographical and bathj-metric distribution of this species and of its "var. 

 abyssorum A. Milne-Edw." are fully dealt with in the above-mentioned work on the Decapoda of the 

 "Travailleur" and "Talisman". It will be sufficient to give here a short extract from this as also a few 

 critical remarks etc. 



The most northerly point in the eastern part of the Atlantic from which the species had previ- 

 ously been taken is south-west of Ireland, 315 — 1000 fm. (Pocock), and in the western part of the same 

 ocean "off Nova Scotia", 42° 41' N. L. South of these points the species has been taken by different 

 expeditions at various places in the Atlantic, thus off Portugal, at the Azores, Canary Islands, off 

 Sierra Leone, in the Sargasso Sea, at the Antilles, at Tristan d'Acunha and at Patagonia at 47° 48^/2' S. L. 

 In the Arabian Sea and Bay of Bengal it has often been taken (Alcock); in the Pacific it has been 

 found at Papua, Banda, Yokohama, Valparaiso (Henderson), off the northern part of South America, 

 Galapagos Islands and the Gulf of California (Faxon). It has twice been taken in 250 fm. (Smith) 

 and downwards at the most different depths to 2221 fm. (Smith). A. Milne-Edwards &: Bouvier write 

 ("Travailleur" and "Talisman", p. 192): "Cette espece, qui s'accommode egalement des mers tropicales, 

 des mers temperees et des mers froides. . .". But this observation is not correct. When the French 

 authors wrote this account, its southern limit was a little below 48° S. L., its northern about 51° N. L.; 

 the northern limit has been moved by the "Ingolf" almost to 63° N. L., nevertheless it is incorrect to 

 speak of its being an inhabitant of tropical, temperate and cold seas. It is really a deep-water species, 

 which seldom occurs in shallower water than 300 fm. and even at this depth the differences between 

 the temperatures of the different parts of its area of distribution are much less than in depths between 

 o and 100 fm.; for example, the lowest temperature at which it was taken by the "Ingolf" was 4-2°. 



Remark.s. A comparison of my specimens with some of P. pilosii/injins and of its \-ariety 

 abyssoruvi A. M.-Edw. received by the Museum has shown that the "Ingolfs" specimens belong to the 

 main species and not to the variety; a study of the descriptions given by the French authors led to 

 the same result. 



21. Galathea intermedia Lilljb. 



1852. Galathea intermedia Lilljeborg, Ofv. K. Sv. Vet.-Akad. forhandl. for 1851, p. 21. 

 ! 1888. — — Bonnier, Bull. Sc. de la France et de la Belgique, 3. Ser. T. i, p. 44, PI. X, 



figs. I — 2, PI. XI, figs. I — 14. 

 1894. — — A. Milne-Edwards & Bouvier, Ann. d. Sc. Natur.. Zool., Sen, 7, T. X\'I, p. 252. 



1900. — — A. Milne-Edwards & Bouvier, Exp. Scient. du Travailleur et du Talisman, 



Crust. Dec, I, p. 277. 

 Occurrence. This species has not been brought home by the "Ingolf" but is present from 

 two places at the Faeroes, namely: 



Thorshavn (A. Benzon); 2 sjiecimens. 



North End of Naalso, 100 fm. (Th. Mortensen); i specimen. 



Distribution. The two works cited of 1888 and igoo give together an almost complete 



