GENEKAX INDEX. 



321 



Placopsammia, Beuss, xviii. 177, 179, 



199. 

 Placoseris, E. de From., xviii. 147, 149, 



198. 

 Placosmilia, Milne-Edw. ^ Haime, 



xviii. 55, 195. 

 Pla,cosmilioida, xviii. 50, 54, 55, 195. 

 Placostegus, PJiilippi, viii. 13-16. 



— caruleus, Schmarda, viii. 13. 



— cariniferus, Gray, viii. 13, 15. 

 , var. Kraussii, Baird * , viii. 14, 



15. 



— Grayi, Baird * , viii. 16. 



— latiligulatus, Baird * , viii. 15, 16. 

 Placotrochoida, xviii. 9, 16, 194. 

 Placotrochus, Milne-Edw. ^ Haime, 



xviii. 16, 194. 

 Placusa, Erichs., xi. 49, 84. 

 Plagiacantha, Miiller, xiv. 151, 179. 

 Plagiodera, Chevr., xi. 74. 

 Plagiolepis, Maj/r, xi. 318. 



— pissina, Boger, xi. 318. 

 Plagionotus pulcher, Blessig, xviii. 



206, 228. 

 Plagiophrys, Clap. ^ Lachm., xiii. 



399. 

 Plagioscion, Gill, xiii. 140. 

 Plagusia, iaifr., xi. 526; XX. 613. 



— depressa, Fabr., xx. 513. 

 Plagusiinffi, xiv. 670. 

 Plaice, XV. 47. 



— , Skeleton of (Traquair), Proc. (1864- 

 65) cviii. See Trans. toI. xxv. 

 263-296. 



Plakopus ruber, Schulze, xiii. 270, 

 271. 



Planacidse, XV. 244. 



Planaria, Goeze, v. 36 ; xii. 209. 



• — alata, Goeze, v. 47. 



— bilis, Braun, V. 15. 



— cylindrica, Goeze, v. 17. 



— fusca, Fabr., xiv. 133. 



— latiuscula, Goeze, v. 5, 35. 



— Lucii, Goeze, V. 21. 



— Melis, Goeze, v. 33. 



— Midse, Braun, v. 41. 



— pusilla, Braun, v. 7. 



— putorii, Goeze, v. 33. 



— subclavata, Goeze, v. 53. 



— teres poro simpliei, Goeze, v. 33, 



44. 



— terrestris, Miiller (Jenyns), Proc. 



(1868-69) xxiv. 



in England (Lubbock), Proc. 



(1867-68) slvi; x. 193-195. 



— Vespertilionis, Goeze, v. 7. 

 Planarians, on thirty-one species of 



Marine, collected partly by the late 

 Dr. Kelaart, at Trincomalee, and 

 partly by Dr. Oullingwood, in the 



Eastern Seas (Dr. OoUingwood), 

 Proc. (1874-75) vii; xii. 291, 

 292 ; xiii. 40, 43. See Trans., 2ad 

 ser. Zool. vol. i. 83-98. 

 Planaxis, Lam., v. 191, 208. 



— laevigata, Lowe, v. 191 ; xii. 519- 



521. 



— virgatus, E. A. Smith, xii. 552, 

 Planes, Bond. * , Proc. ii. 333. 

 Planetis, Waqler, xiv. 403. 

 Planipennia,' xi. 99, 230, 260; xiii. 



377 ; xvi. 154, 155, 162. 

 Planorbis, Guett., iv. 40; xvi, 256, 

 294 ; XX. 475. 



— albus, Miiller, Proc. ii. 119, 122. 



— carinatus, Miiller, Proc. ii. 119, 121, 



122, 



— contortus, lAnn., Proc. ii. 119, 122. 



— corneus, Linn., Proc. ii. 119, 121, 



122 ; V. 16-18. 34, 40. 



— Essingtonensis, E. A. Smith * , xvi. 



294, 295, 316. 



— fragilis. Brazier, xvi. 294, 317; 



XX. 502. 



— Gilberti, Bunker, xvi. 294, 295, 



316 ; XX. 602. 



— imbricatus, Miiller, Proc. ii, 119, 



122. 



— Macquariensis, E. A. Smith * , xvi. 



294, 295, 317. 



— marginatus, Brap., Proc. ii, 119, 121, 



122 ; V. 53 ; xii. 293. 



— nitidus, Miiller, Proc. ii. 119, 122 ; 



V. 53. 



— Noronhensis, E. A. Smith * , xx. 



502, 503. 



— obtusus, Beshayes, xvi. 295. 



— spirorbis, Miiller, Proc, ii. 119, 121, 



122 ; xvi. 296. 



— vortex, Linn., Proc. ii, 119, 121, 122 ; 



V. 53. 

 Planorbtilina, -D' Orb., xiv. 422, 

 Plantigrada, ii. 37. 

 Platacanthus, Bay, xiv. ftnote 639. 



— agrensis, Bay, xiv. ftnote 654. 

 Platalea ajaja, Linn., v. 12; xx. 380. 



— leucoridea, Linn., v. 35. 

 Platanista, Pliry, xiii. 43, 45, 188. 



— gangetica, Lcbeck, xix. 177 ; eye of, 



exhibited (Anderson), Proc. (1876- 

 80) vii ; parasites on (Oobbold), 

 xiii. 35-46. 

 Platemys Bowerbankii, Owen, xii. 515. 



— BuUockii, Owen, xii. 516. 

 Platessa ilesus, Ciov., v. 21, 30, 



— vulgaris, Oiiv., V. 26. 

 Platetrum depressum, Linn., xvi. 155, 



179. 

 Platops, Newp. * , Proc. i. 195. 

 Platurus Eischeri, Jan., X. 67. 



