74 ME. E. J. MIEES ON THE IDOTEIDiE. 



EdOTIA MAGELIANICA. 



Edotia magellanica, Cunningham, Trans. Linn, Soc. xxvii. p. 499, 

 pi. lix. fig. 6 (1871). 



This apparently very distinct species differs from IE. tuberculata 

 as follows : — The body is relatively broader, less conves, the ine- 

 qualities of the dorsal surface are less marked, and there is no 

 median dorsal line of tubercles. The postero-lateral angles of 

 the sixth and seventh thoracic segments are acute. The second 

 coalesced postabdominal segment is partially distinct on the sides, 

 where it is indicated by an acute tooth, and the terminal segment 

 is not so much narrowed at its distal extremity. Length a little 

 over -j7y inch (15 miilim.), breadth about -f'-^ inch (7millim.). 



Five males, preserved in spirit, are in the collection, taken off 

 Cape Espiritu Santo at the eastern entrance of the Straits of 

 Magellan (Cunningham). This is the only recorded locality of 

 this species. 



§§§ Flagellum oftlie antenncB obsolete ; postdbdomenMarticulate. 

 (Desmarestia, Epelys.) (f\A'\Jt)o%^ /^'^'^ 

 A minute rudimentary flagellum may possibly exist ip the 

 single species of this section ; the antennae are represented as 

 terminating in a pencil of setod. 

 1 j tChis section of the genus includes the single species 



ioTIl 'fcHILENSIS. 



Desmarestia chilensis, Gay, Hist, de Chile, Zool. iii. Cr. p. 287, pi. iv. 



fig. 1 (18^9). 

 ? Epelys annulatus, Dana, Amer. Journ. of Sci. and Arts, (ser. 2) vii. 



p. 427 (1849) ; id. U.S. Expl. Exped, Cr. ii. p. 706, pi. xlvi. fig. 8 



(1853), young? 



In this species, as described by Cay (from whose long generic 

 and specific descriptions and figure the following is adapted), the 

 body is subovate, rugose, anteriorly dilated and rounded, narrowed 

 posteriorly; a lateral and longitudinal sulcus running along each 

 side of the dorsal siu^face of the thorax gives, as in other species 

 of the genus, a trilobated appearance to the body. The head is 

 small, broader than long ; its anterior border is biemarginate to 

 receive the antennules ; its median portion is very acute, bent 

 downward, with a longitudinal sulcus very distinct in the middle. 

 Thorax fusiform, slightly convex above. Length of the font 

 anterior segments nearly equal, of the three posterior much 



