URECHINUS LOVENI. 123 



Urechinus naresianus. 



A. Agassiz, 1879. Proc. Amer. Acad., 14, p. 207. 



This species seems to be cosmopolitan in its distribution and is much the 

 best known species of the genus. The great diversity in the form of the test is 

 one of its most striking features. The Albatross material adds nothing of 

 importance to our previous knowledge of the species. 



Station 4766. Between Atka Island and Bowers Bank, Bering Sea. Bott. 

 temp.? 1766 fms. Bott.? 



Station 5030. In Okhotsk Sea. Bott. temp.? 1800 fms. Br. m. 

 Thirteen specimens. 



Urechinus loveni. 



Cystechinus loveni A. Agassiz, 1898. Bull. M. C. Z., 32, p. 79. 

 Urechinus loveni Mortensen, 1907. Ingolf Ech., pt. 2, p. 50. 



Plate 147, fig. 3. 



After a careful examination of both test and pedicellariae I am forced to 

 the conclusion that the Albatross specimens, which Mr. Agassiz and I referred 

 to a new species, Cystechinus purpureus, should really be regarded as loveni. 

 Mortensen has described and figured admirably the pedicellariae of the latter. 

 All of the globiferous pedicellariae found in the Albatross material have two 

 teeth on each side of the terminal opening. One of the specimens from Station 

 5030 is notable for having four genital pores but the extra one is in genital 1 

 close beside the normal pore of that plate (see PL 147, fig. 3). The original 

 specimens of loveni were taken off Acapulco, Mexico, in 1879 fms. Thc-e of 

 the present series are from the same bathymetrical region but from much further 

 north; several are completely crushed. 



Station 4761. South of the Shumagin Islands, Alaska. Bott. temp. 35°. 

 1973 fms. Bl. clay. 



Station 4766. Between Atka Island and Bowers Bank, Bering Sea. Bott. 

 temp.? 1766 fms. Bott.? 



Station 5030. In Okhotsk Seas. Bott. temp.? 1800 fms. Br. M. 



Bathymetrical range, 1766-1973 fms. 



Ten specimens. 



