Antipatharians. By Sophia L. M. Summers. 279 



Antipalhes lentipinna Brook. 



See Antipathes (?) lentipinna Brook, Eeport on the Antipatharia of the 

 'Challenger' Expedition, p. 103, pi. xi. fig. 19. 



A shrub-like colony 28 cm. high, densely branched. The main 

 axis is black and hard, 7 mm. in diameter. In the branches and 

 pinnules the axis is light brown. The polyps are arranged on 

 one side of the axis, and are large (2 mm. in diameter) and 

 crowded together. Here and there small polyps are crowded in 

 between the large ones. Branches are given off, usually from one 

 side only. On the main stem the arrangement of spines is very 

 irregular. The axis is flattened out, and the spines are scattered 

 all over it, but on the branches they are arranged in regular 

 spirals and longitudinal rows, five of winch can be seen from one 

 aspect. The spines are long and triangular, and are very close 

 together. 



Locality. — Portuguese East Africa. Previously recorded from 

 the Bed Sea. 



Antipathes gracilis Gray. 



See Antipathella (?) gracilis Brook, Beport on the Antipatharia of the 

 ' Challenger ' Expedition, p. 113, pi. xi. fig. 8. 



Two specimens, one 8 ■ 5 cm. in height, and the other a little 

 over 9 cm. The latter is a delicate colony, with no regular mode 

 of branching. The branches are thin and short, and are given off 

 at right angles. Anastomoses are frequent, but the terminal 

 fronds are free. The polyps are crowded together on one side of 

 the axis. They are circular, 1 ■ 5 mm. in diameter. The tentacles 

 are short and thick, one pair lying slightly below the level of the 

 other two pairs. The spines are long and numerous, and are 

 arranged in spirals and longitudinal rows, five of which can be 

 seen from one aspect. Members of a row are from two to three 

 lengths apart. 



Locality. — Portuguese East Africa. Previously recorded from 

 West Indies and Madeira. 



Antipathes abies Gray. Plate V. figs. 1, 6. 



See Antipathes abies Brook, Beport on the Antipatharia of the ' Challenger' 



Expedition, p. 70, pi. xi. fig. 21. 



The four specimens show a remarkable difference in the mode 

 of growth. The first specimen, from Five Islands, consists of two 

 fragments, much-branched and bearing many polyps. Some of the 

 polyps are very well preserved, and show a prominent mouth raised 



