*HyalonemQ 2wculuvi, Scliulze. 

 ,, tcnue, Schulze. 



„ [Stijlocalyx) tenerum, Scliulze. 



sp. (?). 

 *HifalostyJus dives, Schulze. 

 * Trachi/caulus gurlittii, Scliulze. 

 Dictyoiiiiie undetermined. 



Pennatulida : 



*Antho2'>tilum simplex, Kolliker. 



Antipatharia : . 



*Schizopathes crassa,^ Brook. 



ACTINIAPJA : 



*Aulorchis 2)ciradoxa,^ Hertwig. 

 *Corallimor'phus profundus, Moseley. 



Edxvardsia sp. (?). 

 *Epizoanthus thalamojihiliis, Hertwig. 

 *Ophiodise7(s anmilatus, Hertwig. 

 * ,, sulcatus, Hertwig. 



Pcdytlioa (?) sp. 

 *Paractis excavata," Hertwig. 



Phellia (?) sp. 

 *Polyopis striata,* Hertwig. 

 *Pohjstomidium iKitens,^ Hertwig. 



Actinian undetermined. 



' The single specimen on wliich the species Schizopathes crassa is based is the finest example of the Schizo^Jathina- 

 contained in the Challenger collection. The stem is 57 cm. long, gracefully but gently Hexuose, with a peculiar 

 flattened sickle-like base replacing the rounded horny disc by which the Antipathinrc are attaclied to stones and other 

 objects. In this case the species is probably fi.xed by the base being embedded in the mud constituting the bottom 

 deposit in the area in which it occurs. The specimen is 53 cm. high, and measures 53 cm. also across the lower 

 branches. The stem is simi)le, much flattened below, but gradually becoming cylindrical and slightly tapering above 

 the lower branches. — (Bbook, Zool. Chall. Exp., part 80, p. 147.) 



* Aulorchis parmloxa is a form of great interest as enlarging by a new genus and sj)ecies the group of forms devoid 

 of tentacles. Unluckily, I have had but the one solitary specimen for study, and even this was badly preserved, and 

 had apparently suffered much from the dredge. . . . From my description it may be recognised tliat A ulorcMs is one 

 of the most interesting Actini;e, and that it would be very desirable that a richer material of it should he acquired by 

 fresh deep-sea investigations. — (Hertwig, Zool. Chall. Exp., part 71, pp. 21, 24.) 



2 Paradis excavata is one of the most characteristic forms of tlie Challenger material, both as to the shape of the 

 body, and as to its finer structure. — (Heetwig, Zool. Chall. Exp., part 15, p. 41.) 



* The small Actinia without tentacles, which I call Polyopis striata, was probably sac-shaped during life ; its 

 rounded posterior end probably stuck in the mud, whilst its broad anterior end formed by the oral disk projected 

 freely.— (Hertwig, Zool. Chall. Exp., part 15, \>. 101.) 



' In Pobjdoraidium patcn.'i the tentacles have undergone retrograde formation to an extent which has hitherto been 

 observed only in the genus Polyopia ; the only traces of them are the terminal openings, which lead directly into the 

 radial chambers and are surrounded by swollen margins, the remains of the tentacle wall. In their habit of body, in 

 the endodermal position of the circular muscle, and in the presence of the marginal spherules, these animals are allied 

 to the Antheadrc.— (Hertwig, Zool. Chall. Exp., part 15, p. 67.) 



