108 CATALOGUE OF THE ZOOPHYTES OF 



6. T. iMPLEXA, n. sp. PL IX., %. 3—6. 



Tubes small, very slender, generally more or less contorted 



below, smooth, wrinkled, or regularly annulated beneath 



a smooth transparent epidermis ; slightly and sub- 



unilaterally branched; the branches going off nearly at 



right angles to the stem, and a little constricted at their 



base. Gregarious ; forming a densely tangled mass of 



half to three-quarters of an inch in height. 



Discovered by Mr. R. Howse, on an old anchor brought in 



by the fishermen, from forty fathoms water, thirty miles 



east of Holy Island. 



As the polype of this species has not been observed, its claim 



to a place in the genus cannot be fixed very decidedly. Its 



mode of branching is similar to that of the other Tubularice, but 



it is much smaller than any species hitherto described. The 



division of the tube into two coats is curious. This takes place 



sometimes near the base, but more frequently in the young 



branches, where the thin, smooth epidermis shows a strongly 



ringed tube within. The epidermis in dried specimens shrinks to 



the form of the inner tube, so as not to be distinguished from it. 



7. CORYMORPHA, Sars. 

 1. 0. NANA, Alder. PI. IX., fig. 7, 8. 



Hydractinia^ Johns. Brit. Zooph., 463, f. 79 a. 

 Uydractinia? (Alderi) Gray, Catal. Eadiata, Brit. 

 Mus. 61. 

 From the fishing boats, Newbiggin ; very rare. 

 Animal elongated, subclavate, tapering downwards. Head 

 conical, varying to subglobose; the mouth surrounded by 

 a circle of short tentacles; below these the surface is 

 tuberculated ; another circle of from fifteen to twenty 

 long tentacles surrounds the base of the head. Body soft 

 and flexible, transparent white, with several longitudinal 

 opaque white lines; when fully extended it is nearly 

 linear, but when at rest the clavate form is very distinct, 

 tapering to a point at the base. Length half-an-inch. 

 Two specimens of this interesting zoophyte occurred to me 



