AGASSIZ AND CLARK: REPORT ON ECHINI. 133 



and the absence of a conspicuous labrum easily distinguish this species from 

 excentrica to which it is otherwise very nearly allied. 



Station 4919. Off Kagoshima Gulf, Japan, 440 fathoms. 



One specimen. 



SPATANGINA Gray. 



Spatangus Lutkeni A. Ag. 



Spatangus Lutkeni A. Agassiz, 1872. Bull. M. C. Z. 3, p. 57. 



The specimens are well preserved but small. 



Station 4807. Between Hakodate and Sado Island, Japan, 44-47 fathoms. 



" 5047- Between Hakodate and Yokohama, Japan, 107 fathoms. 

 Six specimens. 



Gymnopatagus magmis A. Ag. and Clark. 



This fine new species is larger than any of the other members of the genus, our 

 best specimen measuring 98 mm. long, 80 mm. wide, and 30 mm. high. It is 

 much nearer to valdiviae, the type of the genus, in the form of the test and petals, 

 than are either of the Hawaiian species, but it differs strikingly from them all in 

 the large number of primary tubercles within the fasciole, particularly in the pos- 

 terior interambulacrum ; the anterior iuterambulacraeach have 25 to 35 tubercles, 

 the lateral have 28 to 32, and the posterior has 25 to 30. The primary spines 

 are 20 to 45 mm. long and almost perfectly smooth, though many show a. few 

 scattered, minute teeth and in some cases these are sufficiently numerous to form 

 imperfect whorls. The test and primaries of the largest specimen are pale fawn- 

 color with the numerous small spines lighter, almost silvery-white, but a specimen 

 SO mm. long is distinctly reddish, almost dull rose-red on some parts of the test. 



Station 5082. Off Omai Saki Light, Japan, 662 fathoms. 

 " 50S3. Off Omai Saki Light, Japan, 624 fathoms. 



Four specimens. 



Lovenia gregalis Alcock. 



Lovenia gregalis Alcock, 1S93. Journ. Asiat. Soc. Bengal, 62, p. 175. 



The Lovenias in this collection all belong to a single species and are more 

 closely allied to gregalis than to any other species, although thev do not agree in 

 every detail with Alcock's description. 



Station 4906. Southwest of Koshika Islands, Japan, 369-406 fathoms. 

 " 4912. Southwest of Koshika Islands, Japan, 391 fathoms. 



Five specimens. 



