114 BULLETIN OF THE 



Very long tentacles are found in A. spiralis. In very few instances the 

 tentacles are found retracted, as figured by Lacaze Duthiers ; in nriost 

 cases they are simply contracted, and in many species they are probably 

 not retractile at all. 



The following species were collected : — 



Antipathes (Cirrhipathes) Desbonni Duch. & Mich. 



Plate III. Fig. 6. 



In former papers I had used this name for a Cirrhipathes bent in a spiral, 

 although the above authors state their species to be straight. In this collection 

 there is a straight form, besides a large number of spiral ones ; and as they are 

 specifically quite distinct, I retain the above name for the species more fully 

 described here. 



Antipathes growing in clusters, a dozen or more stems from an expanded 

 root, each stem undivided, slender, straight or slightly bent, but not spiral, 

 hollow near the end. Spines small and rather blunt, in regular verticils, of 

 which there are about thirty to a centimeter, each one composed of about 

 twenty spines. On the older parts of the stem the verticils lose somewhat of 

 their regularity, but can always be recognized with a little attention. Ver- 

 tically the spines are also disposed in straight rows, not winding spirally 

 around the stem. The tips of the stems are membranous and collapsed when 

 dry, being thin and hollow, with the spines already quite distinct. Longest 

 stem, 70 cm.; diameter at base, 1.5 mm. 



Only one dry cluster was obtained in station 155, 88 fathoms, off Montserrat. 



Antipathes spiralis Pallas. 



Plate III. Figs. 5, 35, and 26. 



This is the species I had formerly referred to A. Desbonni Duch. & Mich. 

 It may be different from Pallas's species, but I have now no means of com- 

 parison. Our specimens are all very slender, wound nearly from the base into 

 spirals 10 to 20 cm. in diameter. The spirals are either from right to left, or 

 the reverse, and sometimes change from the one to the other in the same 

 specimen. The spines are short, triangular, compressed, and never in verticils, 

 but in quincunx. The longest specimen is 3.20 m. long, 4 to 5 mm. in 

 diameter at the base. 



The polyps are alternately large and small, have very long digitiform ten- 

 tacles, much longer than have been figured of any Antipathes before. (Plate 

 III. Figs. 25 and 26.) The figure represents them as they are frequently dis- 

 posed, the larger polyps alone being visible, the smaller ones showing only in 

 the profile view. At other times the tentacles are very much shortened and 

 Btiftened, and stand out like those of A. arborea figured by Dana. 



