558 PROCEEDIXaS of the XATJOXAL MCSEUM. v"L.xx-in. 



S7. EURYCOPE G. O. Sars. 



ANALYTICAL KEY TO THE SPECIES OF EURYCOPE. 



a. Front of head produced to an acute rostriform projection. Base of head without 

 short transverse ridge. First, second, third, and fourth segments smootli, and 

 produced on each side to acute, anteriorly pointed lappets. Three posterioi- 

 segments smooth, with antero-lateral angles acutely produced. Caudal seg- 

 ment large, semioval in form, edges evenly curved, and perfectly smooth. 



135. Eurycope corrmla G. O. Sars. 



a^. Front of liead has appearance of rostral point caused by frontal margin extending 

 lietween antennute. Base of head with short transverse, tubercular ridge; two 

 oblong, low tubercles situated behind peduncles of antennulse. First segment of 

 thorax with transverse groove. Second, third, and fourth segments have deep 

 transverse depressions, with a sharp spine on anterior portion of each segment, 

 and a compressed protuberance on the posterior portion. Antero-lateral angles 

 of each of these segments produced in short, sharj) spines. Epimera of first 

 segment has a single spine, of three following segments two spines each. 

 Three posterior segments of thorax have each two spines, one on either side of 

 median line. Spine at base of abdomen. At extremity of terminal segment 

 is spine, on either side of which is a lateral triangular spine. 



I'M. Ei(njcuj>c cnrlhhed Benedict, new species. 



135. EURYCOPE CORNUTA G. O. Sars. 



Etirycojw cornuta G. 0. Sars, Chr. Vid. Selsk. Forhandl., 1863, p. 5. 



Eurycope rohusta Harger, Am. Jour. Sci., XV, 1878, p. 375; Proc. U. S. Nat. 



Mus., II, 1879, p. 159; Report U. S. Commissioner of Fish and Fisheries, 



1880, Pt. 6, pp. 332-334, pi. in, fig. 15. 

 Eurycope cornuta G. O. Sars, Crust, of Norway, II, Pts. 9, 10, 1897, p. 145. 



Ilahitat. — Gulf of St. Lawrence; Atlantic coast of North America; 

 also coast of Norway; Skagerak; Greenland; Kara Sea. 

 Dejjth.—lli) to 220 fathoms. 



136. EURYCOPE CARIBBEA Benedict, new species.' 



The head is much wider than long. From the point between the 

 antennulffi a depression curves backward and outward to the post 

 lateral margin. On the base of the head is .a short, transverse, tuber- 

 cular ridge. Two oblong, low tubercles are situated closely" behind 

 the peduncles of the antennulaj. The sides of the head are swollen. 

 The peduncles of the antennas and antennulas occupy a space inclosed 

 by the front and sides of the head; the margin surrounding these 

 appendages is strongly raised. 



The front of the head running between the antennuli\? has the 

 appearance of a rostral point; here the raised margins unite in the 

 narrowest place and then immediately diverge and extend downward 

 perpendicularly and around underneath the appendages, where they 

 meet and lap with the produced and Ijent antero-lateral projections. 

 The tirst joint of the peduncles of the antenna is very stout, with 



^The description that follows is from Dr. Benedict's manuscript. 



