186 Bulletin American Museum of Natural History. [Vol. XXXII, 



region on April 26, stations 5693-5695, 451-640 fms. This locality is 

 southwest of the Santa Barbara Islands, California. Off Monterey County, 

 California, stations 5696-5699, 440-659 fms., 19 species were taken; and 

 off Pt. San Tomas, west coast of Lower California, stations 5673, 5674, 

 5691, 5692, 590-1090 fms., 17 species were collected. Off Cape St. Lucas, 

 at station 5682, five species were taken while at 5683, in slightly deeper 

 water, five wholly different species were found. These two hauls were 

 however, four weeks apart in time, as the 'Albatross' did no dredging 

 while in the Gulf of California. 



The chief interest of the collection lies in the light which it throws on 

 the distribution of previously known species. Little light is thrown on 

 bathymetrical distribution, and the bottom temperatures are surprisingly 

 uniform. Nevertheless, where a species was found at more than three 

 stations, 1 have given a summary of its bathymetrical and temperature 

 ranges, so far as the present collection shows them. Several of the new 

 forms are of more than ordinary interest. Of the two new starfishes one is 

 a Zorofisfir, apparently intermediate between the typical members of the 

 genus and Fisher's proposed subgenus Myxoderma; the other is a Pcdi- 

 cell aster remarkable for its large size. Of the ophiurans, one is a repre- 

 sentative of the very large cosmopolitan genus Ophhtra, while the other 

 represents a new generic type, allied to Opkioderma, but even more spe- 

 cialized. The new echinoid is one of the perplexing genus Urechinus, 

 characteristic deep sea spatangoids. Among the holothurians it is inter- 

 esting to find a new, well-characterized species of the very diversified genus 

 Niehojiux, the members of which are at present in a condition of the greatest 

 confusion. Fortunately the three Pacific coast species are not only well 

 set off from the rest of the genus but are readily distinguishable from each 

 other. The other new holothurian seems to represent a new genus, re- 

 markable among the Elasipods for the absence of dorsal appendages of any 

 kind. 



Holotypes of the new species are deposited in the United States National 

 Museum. Thanks to the generosity of the American Museum of Natural 

 History, paratypes of five of the seven are in the collections of the Museum 

 of Comparative Zoology, while paratypes of the two holothurians are in the 

 American Museum. In this connection I desire to put on record my sincere 

 appreciation of the courtesies shown me by the authorities of the American 

 Museum in connection with the preparation of this report. Particularly 

 I wish to thank Dr. C. H. Townsend and Director F. A. Lucas for entrusting 

 the collection to me for study, and for granting all my requests concerning 

 both the specimens and the report. 



