Verrill, Notes on Hadiata. 327 



Pycnopodia helianthoides Stimp., Tomales Bay. 



Asterias gigantea Stimp., Tomales Bay. 



A. brevispina Stimp., San Francisco (10 fathoms, sandy bottom). 



A. ochracea Brandt, San Francisco at low water ! Tomales Bay 1 northward". 



A. capitata Stimp., San Diego, Cal. 



A. cequalis Stimp., Monterey, Cal. 



ECHINOIDEA. 



Dendrasler excentricus Ag., from Monterey northward! 



Loxechinus purpuratus A. Ag., San Francisco, on rocks at low-water ! 



Toxopneustes Franciscana [Toxocidaris franciscana A.Ag.), S. Francisco I 



HOLOTHURIOIDEA. 



Liosoma arenicola Stimp., San Pedro, Cal. 

 ? Cucumaria frondom Bv., San Francisco. 

 Holothuria Californica Stimp., Tomales Bay. 



Of the 18 species in this list, 10 do not appear to have been, as yet, 

 found north of Tomales Bay, while 6 extend northward to Puget 

 Sound. Astrophyton Caryi may, albo, prove to be the same species as 

 the one indicated from Puget Sound. " Cucumaria frondosa'''' may 

 prove identical with one of the species from Sitcha, described by 

 Brandt, but if correctly identified it is a true circumpolar species and 

 must be supposed to exist along the whole coast northward from San 

 Francisco. Two species have not been found north of San Diego. 



None of the species in the above list have been found at Cape St. 

 Lucas, except Ophiothrix dumosa. 



Concerning the Echinoderms found between San Diego and Marga- 

 rita Bay, Lower California, we have no information whatever. 



The special localities of the following species are unknown. It is 

 quite probable that some of them belong to the fauna of Lower Cali- 

 fornia. 



Chcetaster Californicus Grube, " California." 

 Cidaris Dance Ag., California (Ag. and Des. Catal.), 

 Astriclypeus Mannii Verrill, West Coast of America (?)* 



List of species found at Margarita Bay and Cape St. Lucas. 



Ophiuroidka. 



Ophiura Panamesis Lyman. 

 0. teres Lyman. 

 Ophiocoma cethiops Ltitken. 

 0. Alexandri Lyman. 

 Ophiactis virescens Ldtken. 



* Dr. F. H. Troschel gives Yokohama, Japan, as the locality of this species, — Reprint. 

 Tkans. Connecticut Aoad., Vol. I. 42 July, 1867. 



