16 Mr, A. E. Venill on some 



I liave proposed the name Stichastrella, with S. rosea as its 

 type *. 



Family Pedicellasteridae. 



Coro7iaster hriareus, Verrill. 



Asterias hriareus, Verrill, Brief Cont. to Zool., No. 50, Amer. Journal 

 Science, vol. xxiii. p. 220 (1882) ; toI. xlix. p. 209 (1895). 



This elegant species is a typical Coronaster. It usually 

 lias ten or eleven slender rays. First taken off Cape Hatteras 

 and off Delaware Bay in 57 to 373 fathoms. It has since 

 been taken by the Expedition from Iowa University, off 

 Florida, iu 75 to 110 fathoms. 



Family Brisingidae. 



One of the most remarkable and interesting of the American 

 Antarctic and Patagonian starfishes is Lahidiaster radiosus, 

 Llitken. It is a large starfish with a small disk and twenty 

 to fort}' -six rays. The rays increase by budding in between 

 the older ones. 



To this genus Sladen added (1889) another Antarctic 

 species {L. atinulaius^. This, however, differs so much from 

 i. radiosus that it sliould be separated as a distinct genus, 

 for which I propose the name Labidiastrellaj with L. annu- 

 lata (SI.) as the type. It has the dorsal and superomarginal 

 plates nearly abortive distally beyond the genital region. 



Lahidiastrella Minulata (iSladen) has forty to forty-five 

 long slender rays. It occurred in 75 to 150 fathoms, off 

 Kerguelen I. and off Heard Island, 



Family Acanthasteridae. 



Acanthaster 2)^a7ici (Linn.). 



Asterias planci, Liune, Syst. Nat. ed. x., Appendix, 1758, p. 823. 

 Quotes Colunina, Phytobasamus, pi. xxxviii. fig. A. (This is a 

 characteristic figure of a fifteen-rayed species from Goa, Asia.) 



This long-known large species, widely distributed in the 

 Indo-Pacific Ocean, is generally called A. echinites (Lam.) 

 or A. echinus (Ellis). The name jylanci has clearly the 

 priority, and should be adopted. 



* ' Monogi-apli Sballow-water Starfishes North Pacific Coast,' Smith- 

 sonian Inst. pp. 40, 374 (May 1914). 



