CRUSTACEA MALACOSTRACA. III. 175 



and the locality was stated to be Greenland. The localities for specimens bought in such shops are 

 not always trustworthy, but it is, on the other hand, not impossible that a species found at Vladivo- 

 stock also belongs to the fauna of Arctic America and may live at West Greenland. This is the reason 

 why the species it inserted here, but yet without number; I cannot follow Harriet Richardson, who 

 without any reservation or doubt accepted it on the authority of Bovallius as belonging to the fauna 

 of Greenland, and therefore to that of North America. 



SySCeriUS Harger. 

 Only one species is known from the Atlantic. 



1 20. Syscenus infelix Harger. 



1880. Syscenus infelix Harger, Rep. U. S. Comm. Fish and Fisheries, Pt. VI, p. 387. 

 ! 1883. — Harger, Bull. Mus. Comp. Zool. Vol. IX, No. 4, p. 100; PI. Ill, figs. 5—5 a, PI. 



IV, figs. 3—3 h. 

 ! 1897— 1900.— — G. O. Sars, Account, II, p. 67; PI. 28, and p. 247, Suppl. PI. I. 



1913. — — Stephensen, Rep. Dan. Ocean. Exped. No. 3, p. 10, fig. 3 (With synonymy). 



Occurrence. Not taken by the "Ingolf". But in 1904 the "Thor" captured a larval specimen 

 south-west of the Faeroes in Lat. 6i°i5'N., Long. 9°35' W., 463 — 515 fath. 



Distribution. It has been taken in the northern Kattegat, 23—28 fath., several times in 

 Skager Rak more or less distant from the north coast of Jutland in depths from 37—45 to 106 fath., 

 and off Cape Lindesnses, 112 fath. (H.J.Hansen); besides off Bohuslan, on Gadus merlangus (Bovallius). 

 Sars recorded it from the south coast of Norway, and the larvae from two places, Hvitingso and Bek- 

 kervig, on the west coast of the same country. Zirwas recorded it from Lat. 57°3i' N., Long. 7°27' E., 

 114 fath.; Norman from Lat. 59°4o' N., Long. 7°2i'W., 516 fath., and La Bianco from Capri. Quite 

 small specimens, measuring from 6 to 10 mm., have been captured pelagically in young-fish trawl five 

 times in the western half of the Mediterranean (Stephensen). - - Besides, it has been gathered several 

 times at the east coast of North America or rather far from that country between Lat. 4i°34 I / 2 ' N. and 

 Lat. 38°5o' N., 80 to 640 fath. (Richardson). But when Richardson (1909) records it from the Sea of 

 Japan: Lat. 35°o6'o5" N, Long. i38°4o'2o" E., I entertain strong doubt as to the correctness of the 

 determination, and the authoress had, for the rest, "only one imperfect specimen". 



Family Sphaeromidae. 



Since, in 1905, my treatise : On the Propagation, Structure and Classification of the family Sphaero- 

 midae (Quart. Journ. Micr. Sc. Vol. 49) was published, numerous papers dealing exclusively or partly 

 with this family have been issued by various authors. Among these contributions several are impor- 



