A. H. CLARK : THE CRINOIDS OF THE INDIAN OCEAN. 65 



d* upper part of stem pentagonal ; first brachial occupying about two- 

 thirds of the distal border of the radial. 



(Gephyrocrinus.) 



26. — Family Phrynocrinid.^. 

 The family Phrynocrinidi?e includes only the single genus Phrynncrinus. 



27. — Key to the Genera of Bourgueticrinid^. 



a' three or more of the topmost columnars are over twice as broad as long ; ten 



arms; root scanty, but coarse. 



bathycrinus, p. 274. 



a* only one of the topmost columnars is over twice as broad as long ; usually 5 



arms ; root thick and fine. 



rhizocrinus, p. 279. 



10. SPECIMENS LABELLED "INDIA." 



Many of the specimens in the collection are labelled simply " India " which 

 in some cases is questioned. I suspect that all these were taken in Ceylon as 

 they all properly belong to the fauna of that island. 



n. LIST OF FIGURES. 



Page 

 Pig. l.—COMATELLA NIGRA : lateral view of a typical specimen .. 69 

 Fig. 2.^C0MATULA MICRASTER: dorsal view, showing one ray in 



detail and the remainder in outline . . . . . . 82 



Fig. 3.— COMASTER PARVUS: dorsal view, showing one ray in detail, 

 g^ and the cirri on about one third of the periphery of the centro- 



dorsal . . . . . . ■ ■ . . 88 



Fig. 4.— EUDIOCRINUS ORNATUS : lateral view of a typical specimen 100 

 Fig. 5.— EUDIOCRINUS MINOR : lateral view of the type . . . . 103 



Fig. 6.— ZYGOMETRA COMATA: lateral view of a typical specimen . . 105 

 Fig. 7.— AMPHIMETRA PHILIBERTI: lateral view of a typical speci- 

 men . . . . . . . . ■ • 108 



Fig. 8.— CRASPEDOMETRA ACUTICIRRA : {a) dorsal view of a typical 

 specimen; one ray is shown in detail, and the cirri on about 

 one-third of the periphery of the centrodorsal ; (b) the proxi- 

 mal pinnules . . . . . . • • ..US 



Fig. 9.— HETEROMETRA REYNAUDII : lateral view of a typical speci- 

 men . . . . . . . • . . 122 



Fig. 10.— HETEROMETRA COMPTA : (a) lateral view of a typical speci- 



' men ; (h) the proximal pinnules . . . . . . 126 



