INDEX OF SPECIES. 
Phalena (Bombyx) fullonica, 64. 
—— (Noctua) ancilla, 67. 
cajeta, 67. 
cocalus, 73. 
—— —— hypermnestra, 73. 
materna, 74. 
salaminia, 71. 
Phocena communis, 4, 
Plectoteuthis grandis, 156, 158, 160, 165, 170. 
Prionurus funestus, 380, 384. 
occitanus, 380. 
Proboscidea, on the anatomy of female organs of the, 
111-130. 
, comparison of the female organs of the, with 
those of other mammalia, 126. 
——,, external organs in the, 112. 
——.,, genital organs in the, 114. 
—, internal organs in the, 112. 
——, position of the young in utero of, 129. 
——, urinary organs in the, 113. 
Procoptodon goliah, 8. 
Purbia, n. gen., 70. 
discrepans, 71, 76. 
Raia, on the intestinal valve in the genus, 49-61. 
Rana pipiens, 191. 
temporaria, 222. 
Ranodon sibiricus, 209, 210. 
Reptiles, now or lately living in the Society’s Mena- 
gerie, 215-222. 
Rhinoceros, on the male generative organs of the 
Sumatran, 107-109. 
Rhinoceros indicus, 107, 108, 109. 
Rhytia cocale, 73, 76. 
—— hypermnestra, 73, 76. 
—— materna, 74. 
Salamandrina perspicillata, 171. 
Schedophilus medusophagus, 223, 224. 
Scorpio, description of the muscular and endoskeletal 
system of, by E. J. Beck, 339. 
, appendages and sternal sclerites in, 339. 
, arthrodial membrane in, 341. 
——,, dorsal sclerites in, 339. 
— , dorso-ventral muscles in, 348. 
, entosclerites in, 341, 342. 
——.,, external skeleton in, 339. 
, internal skeleton in, 341. 
, longitudinal muscles in, 343. 
——, muscles in, 343-359. 
501 
Scorpio, muscles to the appendages in, 352. 
, muscles to the epimeron in, 355. 
——, muscles to the pericardium in, 357. 
——, muscles to the pharynx in, 356. 
——, muscles attached to the plastron or first 
entochondrite, 349, 
——, muscles attached to the preoral entosclerite 
in, 351. 
——, muscles attached to the suprapectinal chon- 
drite in, 351. 
——,, plastron or presomatic entochondrite in, 342. 
Scorpio americanus, 377. 
cyaneus, 377, 378, 382, 384. 
italicus, 339, 378, 383. 
Scorpio and Limulus, comparison of the muscular 
and endoskeletal systems of, and consideration of 
the morphological significance of the facts 
recorded, by E. Ray Lankester, 361. 
Scorpions, notes on certain points in the anatomy 
and generic characters of, by E. Ray Lankester, 
372. 
——, generic and subgeneric characters of, 375. 
, systematic arrangement of, 379. 
, venous system in, 372-375. 
Scyllium canicula, intestinal valve in, 57. 
Sea-lion, Californian, see Otaria gillespi. 
Sepia australis, 137. 
elegans, 134. 
latimanus, 134, 
longimanus, 137. 
officinalis, 136, 137. 
palmata, 134, 136, 1387, 168. 
Sepiola grantiania, 139. 
oweniana, 139, 168. 
Sepioteuthis brevis, 137, 168. 
Seppia unguiculata, 155. 
Sieboldia maxima, endocranium of, 175. 
, investing bones of the skull of, 172. 
, recapitulation of the cranial elements of, 
and comparison with Menopoma, 178. 
, skull of, 172, 212. 
, visceral arches of, 175. 
Siren lacertina, 171, 199, 209. 
, cranial nerves of, 194. 
, endocranium of, 190. 
investing bones of the skull of, 187. 
, skull of, 187, 212. 
, skull of, characters peculiar to the, 194, 
