332 Yerrill, JVbtes on Radiata. 



authentic specimens, before all doubt can be removed concerning these 

 conclusions, which are at variance with the distribution of the other 

 Echinoderms. 



List of Species from the West Coast of Ecuador and southern part 



of New Granada. 



Ophitjroidea. 



Astrophyton Panamense Verrill, Zorritos and northward ! 

 Ophiothrix spiculata LeC. This and the preceding are introduced here 

 because found both at Panama and Zorritos. 



ASTERIOIDEA. 



Luidia Bellonce Ltitk., Guayaquil (Ltitk.). Callao ! (Yale Mus.). 



Astropecten armatus Gray, (non Miill. and Tr.), Puerto Portrero. 



A. erinaceus Gray, Punta Santa Elena. 



A. fragills Verrill, Zorritos and northward ! (Yale Mus.). 



Faiilia horrida Gray, Puerto Portrero. 



Nidorellia armata Gray, Punta Santa Elena. 



Oreaster Cumingii (Gray sp.) Ltitk., Punta Santa Elena. 



Ophidiaster pyramidatus Gray, Bay of Caraccas. 



Linckia unifascialis Gray, " " 



L. Columhice Gray, West coast of Columbia. 



Cistina Columbice Gray, " " " 



Dactylosaster gracilis Gray, West coast of Columbia. 



Ferdina Cumingii Gray. *' " " 



(?) Acanthaster Ellisii [Uchiniaster Ellisii Gray), " South America." 



ECHINOIDEA. 



Echinncidaris stellata Ag., Paita and northward ! 

 Echinometra rupicola A. Ag., Zorritos and northward ! 

 Echinoglycus Stokesii Gray, Guayaquil and northward ! 

 Encope occidentaiis Verrill, Zorritos and northward! 



The Asterioidea in the above list are inserted upon the authority 

 of Dr. Gray, from the collection of H. Cuming, unless otherwise indi- 

 cated. The Echinoidea, although mostly unrecorded from this region, 

 are found beyond it upon both sides and are, therefore, inserted here. 

 The Ophiurans and Holothurians are almost unknown. Of the 20 

 species enumerated, 10 are found at Panama; 2 are doubtful inhabit- 

 ants of this district, and the remaining 8, unless some of them be 

 synonymous with Panama species, are still known only from this coast. 

 These peculiar species, which are all Asterioidea, were mostly obtained 

 by Mr. Cuming by dredging, and may hereafter be found by similar 

 search at Panama. 



