380 



BULLETIN 82, UNITED STATES NATIONAL MUSEUM 



Pachyantedon, 170. 



Pachylometra, 101, 158, 192, 194, 195, 196, 

 197, 199, 200, 208, 213, 215, 219, 227, 

 228, 229, 246, 248, 253, 254, 270, 272, 

 279, 346, 348. 

 angusticalyx, 265, 266. 

 crassa, 214, 215, 281, 237, 242, 345. 

 distincta, 198, 249, 250, 253, 254, 263. 

 flexilis, 214, 215. 

 fragilis, 195, 208, 219, 221. 

 helius, 246, 248, 254, 257, 259. 

 imbricata, 281, 345. 

 inaequalla, 198, 243, 246, 263. 

 invenusta, 259, 275. 



investigatoris, 227, 228, 249, 254, 256, 259. 

 laevigata, 271, 272. 

 lateralis, 227, 274. 

 levigata, 198, 263, 265, 271. 

 luna, 254, 256, 259. 

 macilenta, 216, 219, 259, 263. 

 n. sp. 266, 268. 

 patula, 209. 213. 

 robusta, 216, 219, 260, 261. 

 selateri, 193, 268, 270. 

 selene, 249, 253, 254. 

 septentrionalis, 195, 246, 248, 249. 

 smithi, 249, 253. 

 palmata, Lamprometra, 69. 

 Palmata group, 69. 

 palmata palmata, Lamprometra, 1. 

 Paradoxus group, 20. 



Parametra, 4, 5, 6 (in key), 42, 64, 65, 69, 72, 

 78, 82, 87, 88, 152, 194, 196, 200, 348. 

 ajax, 64, 65 (in key), 84, 86, pi. 9, fig. 29. 

 alboflava, 88, 89. 

 compressa, 64, 65, 66, 69, 70, 72, 82, 152, 



pi. 8, fig. 26. 

 fisheri, 64, 65 (in key), 66, 72, 86, pi. 9, 



fig. 28. 

 granulata, 64, 65 (in key), 66, 67, 68, 69, 



72, 82, pi. 7, fig. 25, pi. 10, figs. 31, 32. 

 lisa, 64, 65 (in key), 83. 

 orion, 18, 21, 64, 65 (in key), 72, 77, 78, 

 80, 82, 152, 196, 197, 208, 221, 232, 274, 

 pi. 5, figs. 19, 20, pi. 8, fig. 27, pi. 10, 

 fig. 30. 

 parrae, Endoxocrinus, 39. 

 parvicirra, Comanthus, 346. 

 parvipinna, Antcdon, 191, 361, 365, 368. 

 Charitometra, 365, 368. 

 Strotometra, 196, 361 (in key), 366, 368, 

 370. 

 patula, Antcdon, 1, 68, 69, 192, 208, 209, 212, 

 213, 216, 218, 219. 

 Charitometra, 209. 



patula, Glyptometra, 196. 



Monachometra, 208 (in key), 209, pi. 20, 



fig. 61. 

 Pachylometra, 209, 213. 

 Perissometra, 68, 69, 195, 196, 209, 213, 

 232, 274. 

 pawneeanus, Arcturus, 41. 

 Pentacrinus wyville-thomsoni, 121, 121. 

 pergracilis, Antedon, 173. 



Thalassometra, 163, 173, 175, 176, 185. 

 peripolos, Thalassometra, 154 (in key), 178, 



180, pi. 18, figs. 56, 57. 

 Perissometra, 158, 195, 196, 199, 208, 213, 215, 

 219, 228, 229, 232, 242, 243, 254, 262, 265, 

 266, 274, 275. 

 Perissometra angusticalyx, 196, 263, 265, 287, 

 333, 337, 338. 

 annae, 238. 

 aranea, 72, 73, 75, 78, 82, 196, 197, 206, 



208, 232, 236, 272, 274. 

 carinata, 72, 73, 77, 78, 82, 196, 197. 

 crassa, 237, 243, 268, 274. 

 flexilis, 68, 69, 70, 160, 196, 214, 215, 232, 



274. 

 gorgonia, 241, 242, 243. 

 inaequalis, 333, 337, 338. 

 invenusta, 275, 276. 

 lata, 195, 196, 230, 232, 272, 274. 

 macilenta, 246, 254, 260, 262. 

 occidentalis, 237, 243, 260, 261, 262, 263, 



268. 

 patula, 68, 69, 195, 196, 209, 213, 232, 274. 

 robusta, 69, 160, 209, 216. 

 selene, 249, 251, 254. 

 sparksi, 266, 268. 

 timorensis, 196, 230, 232, 272, 274, 276. 



Perometrinae, 1. 



perplexa, Gislenometra, 270. 



Stiremetra, 120, 121 (in key), 129, pi. 14, 



fig. 44. 

 Thalassometra, 129, 173, 175. 

 phalangium, Antedon, 125. 

 philippinensis, Cosmiometra, 43 (in key), 49, 



62, 56, 60, 61, pi. 5, fig. 16, pi. 6, fig. 22. 

 pictum, Myzostomum, 39. 

 Poecilometra, 1, 5, 192, 194, 195, 196, 201 (in 



key), 199, 200, 348, 354, 355, 359, 360. 

 Poecilometra acoela, 115, 116, 245, 265, 355, 

 357, 359, 360. 



scalaris, 355 (in key), 358, 359, 360. 

 Pontiometra andersoni, 1, 191, 192. 

 porrecta, Antedon, 1, 100, 101, 103, 104, 105, 

 106, 181, 182, 192, 345. 

 Antedon (Crotalometra), 101. 



