116 BULLETIN OF THE 



distant and rudimentary tentacles ; on the main stem very few buccal knobs 

 are found, and these entirely destitute of tentacles. 



Height of specimens 20 to 25 cm. 



Station 260, 291 fathoms, off Grenada. Station 286, 7 to 45 fathoms, off 

 Barbados. 



Antipathes tanacetum Pourt. n. sp. 



Plate III. Tig. 13. 



The mode of branching and the spines have been described under the pre- 

 ceding species, and the differences pointed out. This species remains mostly 

 with a simple stem, rarely branching a few times, and has much the appearance 

 of a leaf of tansy or yarrow. On the lower part of the stem the spines 

 become very slender and branching like miniature deer-horns, forming a 

 velvety covering, which becomes filled with grains of sand, sponge spicules, &c. 

 The polyps were badly preserved, but evidently very small. 



Most specimens have a parasitic worm, resembling very much, and perhaps 

 identical with, the one which produces the tube in A. columnaris ; here 

 however, it remains applied to the stem, partly protected by the branchlets, 

 but producing no change in their growth. 



Range from 88 to 170 fathoms, in eight stations, off Santa Cruz, Montserrat, 

 Dominica, Martinique, the Grenadines, and Grenada. 



Antipathes filix Pourt. 

 Plate HI. Figrs. 15 and 16. 



My original description of this species was based on simple and younger 

 stocks ; it, however, branches in a subflabellate manner, spreading 30 to 40 

 cm., more in breadth than height, and assuming then a general appearance 

 with A. myriojjhylla of the East Indies, with which I have confounded it when 

 in this state (Bull. Mus. Comp. Zool., Vol. V. No. 9). It differs from it greatly 

 in the arrangement of the pinnules and spines. The long spines surrounding 

 the polyps are beset with little knobs at the end, giving them a rugose appear- 

 ance. In A. myriophylla (PI. III. Fig. 23) the spines are all equal. 



The polyps are small and inconspicuous, and of the type of those of ^. 

 humilis (PI. III. Fig. 32). 



The differences between this species and A. ahietina are not great, the spines 

 and polyps presenting no particular differences. The latter species may be 

 distinguished, if it is not considered a mere variety, by its greater stiffness, and 

 by being regularly pinnate instead of having pinnules in every direction. 



Range from 76 to 287 fathoms, in twenty stations, off Montserrat, Martinique, 

 Dominica, Guadeloupe, St. Vincent, the Grenadines, and Barbados. 



