A. H. CLARK: THE CRTNOIDS OF THE INDIAN OCEAN. 67 



Fig. 41.— PACHYLOMETRA MACILENTA : lateral view of the type . . 223 

 Fig. 42.— MASTIGOMETRA MICROPODA ; lateral view of the type . . 228 

 Fig. 43.— PS ATHYROMETR A MIRA: lateral view of the type .. 235 



Fig. 44.— PSATHYROMETRA GRACILLIMA : lateral view of the type 237 

 Fig. 45.— TRICHOMETRA OBSCURA : lateral view of the type . . 240 



Fig. 46.— EU:\IETRA INDICA : lateral view of the type . . . . 243 



Fig. 47.— DECAMETROCRIlSrUS sp. : (a) dorsal view of the arm, recon- 

 structed ; (b) lateral view of the base of the arm . 249 

 Fig. 48.— COMASTROCRINUS SPRINGERI : lateral view of the crown 255 

 Fig. 49.— COMASTROCRINUS SPRINGERI : the stem . . ... 256 

 Fig. 50.— COMASTROCRINUS ORNATUS : lateral view of the crown . . 258 

 Fig. 51.— COMASTROCRINUS ORNATUS: the stem .. ..259 

 Fig. 52.— COMASTROCRINUS LILIACEUS : lateral view of the crown 260 

 Fig. 53.— COMASTROCRINUS LILIACEUS: the stem .. ..261 

 Fig. 54.— COMASTROCRINUS LILIACEUS: the crown of a very young 



specimen . . . . ■ ■ ■ • • -62 



Fig. 55.— COMASTROCRINUS LILIACEUS : the distal part of the stem 



of the specimen represented in fig. 54 . . 263 



Fig. 56.— METACRINUS BATHERI : lateral view of the crown 

 Fig. 57.— METACRINUS BATHERI : the stem . . 



Fig. 58.— METACRINUS BATHERI var. : lateral view of the crown . 

 Fig. 59.— METACRINUS BATHERI var. : the stem 

 Fig. 60.— BATHYCRINUS WOODMASONI : the type 

 Fig. 61.— BATHYCRINUS PARADOXUS: (a) lateral view of the crown 

 (b) lateral view of part of an arm ; {c) the stem . . 



SYSTEMATIC PART. 



Phylum ECHINODERMATA. 



Echinodermata 1734. Klein, Nat. Dispositio Echinod. 



Subphylum ECHINODERMATA HETERORADIATA. 



Ecfiinodmiiata Heteroradiata 1908. A. H. Clark, Proc. Biol. Sec. Washington, 

 vol. 21, p. 184. — 1J09. American Naturalist, vol. 43, No. 515, p. 686. 



Superclass PELMATOZOA. 



Pelwatozoa 184S. Leuckart, Morphologic der wirbellosen Thieren. 



Class CRINOIDEA. 

 Crinoidea 1821. Miller, A Natural History of the Crinoidea, p. 1. 



265 

 266 



267 

 268 

 275 



