CR1 rSTACEA MALACOSTRACA. 



95 



whilst the figures given by G. O. v Sars and Coutiere are either defective or incorrect. The description 

 to the plate furnishes sufficient explanation for the understanding of these figures. 



2. Eucopia unguiculata Will.-Suhin. 



1875. Chalaraspis unguiculata Willemoes-Suhm, Trans. Linn. Soc, Ser. 2, Vol. I, p. 37—40, PI. VIII. 

 1885. Eucopia australis G. O. Sars, Challenger Rep., Zool., Vol. XIII, p. 55, Pis. IX— X. 



Only in part, whilst E. australis Dana is another species. 

 • r 9°5- — unguiculata H. J. Hansen, Bull. Mus. Ocean. Monaco, No. 42, p. 3. 

 Occurrence. The "Ingolf" has taken this species at 8 localities: 

 Davis Straits: St 36: 6i° 50' N. L., 56°2i'W. L., 1435 fin; 1 spec. 

 South of Greenland: St. 21: 58°oi'N. L,, 44 45' W. L,, 1330 fm; 2 r / 2 spec. 

 West of Iceland: St. 12: 64 38' N. L,., 32 37' W. L, 1040 fm.; ca. 20 spec. 



— - - 11: 64°34' — 31° 12' — 1300 — ; '/z spec. 

 South-West of Iceland: St. 17: 62 49' N. L, 26 55' W. L-, 745 fm.; 3 spec. 



- - - 83: 62 25' - 28° 30' - 912 -; 5 



South of Iceland: St. 40: 62 00' N. L,, 2i°36'W. L., 835 fm.; 3 spec. 



— - — - 49: 62 o7' — i5°07 f — 1120 — ; I / 2 spec. 



The species has been taken by the "Thor" three times to the south of Iceland and once south- 

 west of the Faeroes; for two of these the apparatus used was the young-fish trawl with 1800 meters wire out. 



Distribution. As Sars has mixed together 3 species (E. australis Dana, E. unguiculata Will.-Suhm , 

 and E. sculpticauda Faxon) in his description of E. australis and as later authors have not described 

 the specimens examined by them I shall not follow the literature in speaking of the distribution but 

 base my statements on my own observations. In 1905 it was twice taken by the "Thor" west of the 

 Hebrides with 1500 meters wire out; I have seen numerous specimens from the western Mediterranean, 

 from the Atlantic round the Azores and Canary Islands, from various places in the Indian Archipelago 

 and from parts of the Pacific Ocean. To judge from the catches of the "Thor" and of G. H. Fowler 

 (1905) this species is always pelagic in intermediate layers; it never comes near the surface. 



Remarks. In the paper cited above I have indicated the characteristics of this species which 

 distinguish it from the real E. australis Dana and from another large form as yet unnamed, and also 

 discussed the synonymy. — 



Adult specimens are as a rule only ca. 27—30 mm. in length, but two specimens of quite 

 unusual size, viz. a female with marsupium 37 mm. long and a male 38 mm., occur amongst the 

 considerable material from the "Ingolf St. 12. 



3. Eucopia sculpticauda Faxon. 



1893. Eucopia sculpticauda Faxon, Bull. Mus. Comp. Zool., Vol. XXIV, p. 218. 

 ! 1895. Faxon, Mem. Mus. Comp. Zool, Vol. XVIII, p. 219, PI. K, figs. 2, 2 d, 



PI. LIH, figs. 1— 1 d. 

 1905. — H. J. Hansen, Bull. Mus. Ocean. Monaco, no. 30, p. 7, fig. 4. 



