.1893.] A. Alcock — Account of the Deep Sea Collection. 171 



The tentacles, which appear to he about ninety in numher, are 

 disposed in three concentric series. 



Greatest height 22 ram. : diameter of calicnlar orifice 32 mm. : 

 depth of calicular fossa 16 mm. 



From the Bay of Bengal on a muddy "bottom at 573 fathoms : 

 hottom-temperature 45 '3° Fahr. 



Family Oculinidse. 



Ctathohelia, Edw. and H. 



4. Cyathohelia axillaris (Ell. and Sol.) 



Madrepora axillaris, Ellis and Solander, Nat. Hist, of Zoophytes, 

 p. 153, tab. 13, fig. 5. 



Cyathohelia axillaris, Edw. and Haime, Coralliaires II. 110. 



A branch of a colony answering to the figure in Ellis and Solander 

 was dredged from a previously unknown coral bank in Lat. 14° 11' 6" 

 N., Long. 80° 24' E. [about 55 miles K by E. of Madras) in 88 fathoms, 

 bottom-temperature 65° Fahr. 



MADREPORARIA POROSA. 

 Family Eupsammidse. 



Dendrophyllia, Edw. and H. 



5. Dendrophyllia nigrescens, Dana. 



Dendrophyllia nigrescens, Dana, Zoophytes, p. 387, pi. 27 (30), fig. 1. 

 From the same coral bank, at the same depth, several branches of 

 this species were dredged. 



ANTHOZOA ALCYONIOMORPHA. 

 The coral bank in 88 fathoms, N. by E. of Madras, appeal's to be 

 very rich in Gorgonacea and Alcyonacea. Unfortunately the dredgino-g 

 were merely rough dried, without any treatment, so that they reached 

 the Museum denuded and almost valueless. The following genera are 

 recognized : — Anthogorgia, Echinogorgia, Acis, Gorgonella, Juncella, Scir- 

 pearella ; Spongodes. 



ECHINODERMA. 



ASTBROIDEA. 



Family Archasteridse. 



PSEUDARCHASTER, Sladen. 



1. J? seudar chaster mosaicus, Alcock and Wood-Mason. 



PseudarcJiaster mosaictts, Alcock and Wood-Mason, Ann. and Mao-. 

 Nat. Hist., Dec. 1891, p. 432. 



A specimen with a span of nearly 200 mm. from 599 fathoms off 

 the Madras Coast. 



