560 



INDEX OF SPECIES. 



Pristtopliorus japonicus, dorsal fin of, 4.52, 483. 



, pectoral fin of, 453, 483. 



, ventral fin of, 452, 483. 



Pristis cuspidata, 439, 453. 



, first dorsal fin of, 453, 483. 



Pristmrus, embryos of, | and J of an inch in length, 



213. 

 Proteus anguinus, 192. 

 Protopterus and Ceratodus, on the hearts of, with an 



account of undescribed pocket-valves in the 



conus arteriosus of, by E. Ray Lankester, 493. 



annectens, 495. 



. (Lepidosiren) annectens, conus arteriosus of, 



501. 



( ) , heart of, 500. 



Psephotus multicolor, 257. 

 Ptilotis, sp. ?, 260, 311, 312. 



,sp.?, skull of, 260. 



Pygcera hucephala, 519. 

 Pyranga nthra, 254, 311, 312. 



, skull of, 254. 



Raia clavata, embryos of, 221. 



, skidl of adult, 222. 



Iwvis, 467. 



maculata, 439, 455. 



, dorsal fin of, 455, 483. 



, embryo of, 1 5 inch in entire length, 213 ; 



4 inches long, 217. 

 Ranoclon sibincus, 476. 

 Ray, pectoral type of limb of, 474. 

 Rhea, atlas of, 3. 



, axial skeleton of the, 1-15. 



, axis of, 3. 



, caudal vertebras of, 10. 



, cervical vertebrae of, 3. 



, cernco-dorsal vertebrfe of, 6. 



, characters of, 46. 



, dorsal vertebrae of, 6. 



-, dorso-lumbar vertebrae of, 7. 



, ilium of, 12. 



, ischium of, 12. 



, lumbar vertebrae of, 7. 



, pehds of, 10. 



, pubis of, 12. 



, ribs of, 12-14. 



; sacral vertebrae of, 9. 



, sacro-caudal vertebrae of, 9. 



, sacrum of a young, 8. 



Rhea, sternal ribs of, 14. 



, sternum of, 14. 



, vertebr* of, 1-10. 



, vertebral parts and processes of, 15. 



, vertebral ribs of, 12-14. 



and Struthio, characters common to, 45. 



americana, 259. 



Rhinoceros, astragalus of, 103 ; dimension of, 104. 



, bones of the hinder extremity of, 100-103. 



, femur of, 100, 101 ; dimensions of, 102. 



— ■■ — , head of, 91-95. 

 — — , humerus of, 96. 

 , list of bones of, found in Genista Cave, 



Gibraltar, 90, 01. 



, metacarpal bones of, 100. 



, metatarsus of, 105-107; dimension of third, 



106 ; dimension of fourth, 107. 



, OS lunare of, 99, 100. 



, tibia of, 102 ; dimension of, 103. 



, upper molars of, 91, 92, 93. 



of Gibraltar, 90-108. 



hicornk, 94, 95, 96, 97, 98, 100, 101, 102, 



105, 106, 107, 108, 131. 



crocuta, 94. 



etruscm, 94, 101, 102, 105, 106, 107, 108, 



116. 

 heviitoechus, 59, 93, 94, 95, 96, 98, 99, 100, 



101, 102, 104, 105, 106, 107, 108, 114, 130, 



131. 



incisivus, 106. 



l-eitloa, 96, 97. 



leptorhinus, 93, 94, 101, 107, 108. 



megarhinus, 93, 94, 96, 97, 98, 100, 102, 104, 



105, 106, 107, 108. 



merclii, 107, 108. 



sumatrensis, 106. 



iichorhinus, 94, 105, 106, 108, 131. 



unicornis, 95, 106. 



, brain of, compared with Ceratorhinus 



sumatrensis, 411, 412. 

 Rhipheus clasycephalus, 523. 

 RhyncJiohatus djeddensis, 4.39, 453. 



, dorsal fin of, 453, 483. 



Ruticilla phoeiiicurus, 311. 

 Salamandrella l-eyserlingii, 476. 



wosnefsenslyi, 476. 



Saturnia certhia, 517, 518. 



Sclater, P. L. Supplementary notes on the Cu- 



