REPORT ON THE ANTIPATHARIA. 155 



Hah '''.—Station 240: July 2, 1575 ; lat. 36 In' X., long. 178" 0' E.: depth, 2050 

 fathoms; bottom, Globigerina ooze. One specimen. 



- tion 181; August 25. 1-74: lat. 13" 50' S., long. 15T 49' E.; depth, 2440 

 fathom- 'm, red day. I imen. 



Bathypathes tenuis, n. sp. (PI. VI. figs. 7-10). 



ilium very slender ; the stem is no thicker than a bristle, and bears near its apex 

 two or three hair-like alternate branches, one or more of which may bear a short 



- "ndary branch from its upper surfa. 



The stem is about 11 cm. long, very slender, like young forms of Bathypathes patula, 

 and bears two or three alternate or subalternate branches near the apex at an acute 

 angle, one or more of which ma}- be 3 "5 cm. long. The longer ones sometimes bear a 

 single branchlet almost at right angles and directed upwards (PL VI. fig. 7). The polyps 

 are imperfectly preserved but are always isolated, and have all the characters of those of 

 the genus Bathypathes. The spines on the branches (PL VI. fig. 9) are short, triangular, 

 and scattered, and have no definite arrangement. Near the base of the stem (PL VI. 

 fig. 10) they are arranged in subregular rows, three of which may be observed from 

 one aspect. The members of some rows are more numerous than those of others ; they 

 are from two to five lengths apart. 



This species comes very near to the young forms of Bathypathes patula, but bears 

 fewer branches, and these are not so much arched forwards. I have considered it 

 distinct on account of the fact that the branches sometimes bear a single branchlet. 

 a feature which has not been observed in any other species of the genus. The arrange- 

 ment ol - dso differs from that of other species, but comes nearest to that of Bathy- 

 Uernata, The spines are. however, smaller and more distant than in that spa 



Habitat.— Station 160: March 13, 1874; lat. 42° 42' S., long. 134° 10' K; depth. 

 2600 fathoms ; bottom, red clay. Two specimens and a number of fragments. 



Genus T f kes, n. gen. 



Dimorphic zooids small and rather close together. In the gastrozooid the stoniodamm 



- Imgated in the transverse axis, and the mesoglcea is thin and structureless. There 

 are ten mesenteries in the gastrozooid, those in the transverse axis being continuous 

 below with those of the gonozooids. The ova are large, but not enclosed in special 

 chambers. The stem is branched, and each branch bears six rows of slender rigid 

 pinnules arranged in half spirals as in Parantipathes larix. The form of the base is 

 not known. The single species referred to this genus presents a curious medley of 

 characters. Perhaps it most closely resembles Parantipathes larix. but the pinnules 

 are much shorter and the zooids are dimorphic, each with two tentacles. The zooids 



