Verrill, Notes on Radiata. 335 



HOLOTHUEIOIDEA. 



Anaperus Peruanus Troscb.,Paita and Callao \{-=iPattalus PeruvianusY .). 

 Pentacta sp., Paita ! 



In this list are 18 species, of which only 3 have been recorded from 

 north of Cape Blanco, and two of these apparently find their south- 

 ern limit at Paita ; 2 are known only from Paita, and 2 from Callao. 

 Six of the species extend southward to northern Chili, and several 

 even to Valparaiso. 



Zdst of species from the coast of Chili. 

 Ophiurioidea. 



uistroiyhyton Chilense Phil., Chili. 

 Ophiolepis Atacamensis Phil., Isla Blanca, Chili. 

 Ophiactis asperula Ltitk., Chili, Isle of Philoe. 

 Amphiura Chilensis Ltitk., Chili. 



ASTERIOIDEA. 



Ooniodiscus verrucosus Phil., Chili, Valparaiso and Rio Maipu. 



G. singularis MtiH. and Tr., Chili. 



Astrof/onium Fonki Phil., Chili. 



Asteriscus [Patiria) Chilensis Ltitk., Valparaiso and northward ! 



Heliaster helianthus Gray, Valparaiso and northward. 



Stichasler auranticus V, (Meyen sp.), Valparaiso and northward, 



Asterias gelatinosa Meyen {A. rustica Gray), Valparaiso. 



Asterias echinata Gray, Valparaiso. Perhaps identical with one of the 



following. 

 Asterias Germanii nobis (Philippi sp.), Chili. 

 Asterias lurida nobis (Philippi sp.). Chili. 



ECHINOIDEA. 



Echinocidaris sjmtiiligera Ag. and Des., Coquimbo and northward. 

 Arbacia nigra Gray, Coquimbo and northward. 

 Loxechinus albus Ag, and Des., Chili northward to Callao. 

 Anfkocidaris erythrogramma (Val. sp.) Ltitk., Chili, Ag. and Des. 

 Colobocentrotus pediferus Ag., Valparaiso ! 



Of the 19 species in this list, 6 occur also on the coast of Peru, 

 at Callao or farther north. The remaining species are peculiar to 

 the district so far as known. It is probable that northern Chili, per- 

 haps as far as Valparaiso, belongs to the Peruvian Fanua, while the 

 shores of southern Chili, and Patagonia, are inhabited by a distinct 

 Fauna. The absence of exact localities for many of the species pre- 

 vents a satisfactory solution of this question. 



Trans. Connecticut Acad., Vol. I. 43 June, 186T. 



