330 DR MURRAY ON THE DEEP AND SHALLOW-WATER MARINE FAUNA 



*Hyalonema poeulum, Schulze. 

 „ tenue, Schulze. 



„ (Stylocalyx) tenerum, Schulze. 



sp, (?)• 

 *HyaJostylus dives, Schulze. 

 *Trachycaulus gurlittii, Schulze. 

 Dictyonine undetermined. 



Pennatulida : 



*Anthoptiltim simplex, Kolliker. 



Antipatharia : 



* Schizopathcs crassa? Brook. 



Actinia ri a : 



* Aulorchis paradoxal Hertvvig. 



* Corallimorphus profundus, Moseley. 

 Edwardsia sp. (?). 



* Epizoantlius thalamophilus, Hertwig. 

 *Ophiodiscus annul atus, Hertwig. 



* ,, sidcatus, Hertwig. 

 Palyihoa (?) sp. 



*Paractis exccivata* Hertwig. 

 Phellia (?) sp. 



* Polyopis striata* Hertwig. 

 *Polystomidium patens, 5 Hertwig. 



Actinian undetermined. 



1 The single specimen on which the species Schizopathes crassa is based is the finest example of the Schizopathina' 

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

 flattened sickle-like base replacing the rounded liorny disc by which the Antipathinae are attached to stones and otlu tt 

 objects. In this case the species is probably fixed 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 stein is simple, much flattened below, but gradually becoming cylindrical and slightly tapering above 

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



2 Aulorchis paradoxa is a form of great interest as enlarging by a new genus and species 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 that Aulorchis is one 

 of the most interesting Actiniae, and that it would be very desirable that a richer material of it should be acquired hy 

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



3 Paractis excavata is one of the most characteristic forms of the Challenger material, both as to the shape of the 

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



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

 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, p. 101.) 



5 In Polystomidium patens the tentacles have undergone retrograde formation to an extent which has hitherto been 

 observed only in the genus Polyopis ; 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 Antheada.-.— (Hertwig, Zool. Chall. Exp., part 15, p. 67.) 



