162 Bulletin American Museum of Natural History [Vol. XLVIII 



the examination of the present specimen confirms my belief that it is a 

 recognizable, natural group. In one respect, however, this specimen from 

 the Gulf of California is unlike those from Monterey, California, and 

 that is in the deposits of the sole. It is probable, however, that my 

 original description failed to recognize the diversity to be found in these 

 desposits. 



Benthodytes sanguinolenta Theel 

 Benthodytes sanguinolenta Theel, 1882, 'Rep. Voy. 'Challenger,' Zool.,' XIII, 

 p. 104. 



There are three fairly well preserved specimens of this deep sea 

 holothurian, 125 to 175 mm. long, but they have with them no locality 

 label. The 'Albatross' met with the species at four stations in depths 

 exceeding one thousand fathoms. 



Pseudostichopus mollis Theel 



Pseudostichopus mollis Theel, 1886, 'Rep. Voy. 'Challenger,' Zool.,' XXXIX, 

 p. 169. 



There are three additional specimens from Station 5695. They are 

 smooth, shiny white, and 110 to 150 mm. long. 



Stichopus parvimensis H. L. Clark 

 Stichopus parvimensis H. L. Clark, 1913, Bull. American Mus. Nat. Hist., 

 XXXII, p. 234. 



A young Stichopus only 40 mm. long seems to belong to this species. 

 The dorsal papillae have very dark tips. 



Point San Bartolome, west coast of Lower California. "Boat 

 dredge." 



Holothuria lubrica Selenka 

 Holothuria lubrica Selenka, 1867, Zeitschr. f. w. Zool., XVII, p. 329. 



The specimens listed in the earlier report bore no locality label, but 

 of those now at hand only two lack such a label. The specimens run 

 from 20 to 160 mm. in length, the last being a maximum for the species. 

 It is interesting to note that the species occurs on both sides of Lower 

 California as well as far up in the Gulf. 



Angel de la Guardia Island, Gulf of California. 



Pichilingue Bay, east coast of Lower California. 



Santa Maria Bay, west coast of Lower California. 



Eight specimens. 



