CRINOIDEA. 153 



South Const of Ceylon. 



STATION XXXIV. Welligam Bay, various parts; depths 2 to 7 fathoms; bottom 



shell sand and a little mud ; sea temperature at 7 A.M., 77'8 F., specific gravity, 

 L-0225. 



STATION XXXIX. From 2 miles south of Point de Galle westwards to Gallehogalle 

 Bank ; depths 16 to 30 fathoms ; bottom fine sand ; stones and Nullipore on the 

 bank. 



STATION XLL South of Galle, about 12 miles off land; depth along the 100-fathom 

 line ; bottom composed of masses of calcareous branched and ramifying Fora- 

 miniferal tubes. 



List of Ceylon Comatulid.e. 



The species marked with an asterisk were collected by Professor HkrdMan and 

 were not previously known from Ceylon. The species new to science is indicated by 

 a dagger. Antedon carinctta and A. reynaudi are the only species in the collection 

 previously recorded from Ceylon. 



*Antedon serripinna, Carpenter. Antedon palmala (Miiller). 



reynaudi (Miiller). 



* ,, anceps, Carpenter. 



* mriipinna, Carpenter. 

 Aclinomelra cumingi (Miiller). 



notata, Carpenter. 



,, ffiultiradiata (Linn.). 



parvicirra (Miiller). 



CEINOIDEA. 



niMAITLLlLi:. 



Antedon serripinna, Carpenter. Plate, figs. 1, 2, 2a. 



The type specimen of this species described by P. H. Carpenter has only 

 12 marginal cirri, in which the number of joints is 18, while the specimens described 

 by Hartlaub have 20 cirri, consisting of 20 joints. The specimens in this collection 

 from Ceylon have 15 cirri, consisting of 17 joints, of which all from the second to 

 the antepenultimate have a strong transverse dorsal ridge. This is near the distal 

 end in the first few joints, but becomes median and, viewed in profile, spinedike 

 in the later ones. The penultimate joint has a strong opposing spine (Plate, 

 figs. 2, 2a). The arms of the Ceylon specimens are slender and serrate, and contain 

 about 150 joints. The 2nd and 3rd syzygies are situated in the 8th and 12th 



X 



