INDEX. 
Pleurotomaria Beyrichu,  Hilyendor/, 
442, 
Pleurotomella, Verril/, mentioned, 456, 
459. 
Podargus humeralis, Vig. § Horsf., 354. 
Podiceps cristatus, Linn., 356. 
Podocopa, 418. 
Polycheta of the Family Ammocharide, 
by A. T. Watson, 230-260. 
Polymastodon, Kraatz, incisors of, 284. 
foliatus, Cope, 284. 
taoénsis, Cope, mentioned. 282. 
Polymastodontidex, molar tooth of, 282; 
incisors of, 284. 
Polymorphina communis, d’Orb., 403. 
compressa, @’Orb., 403. 
gutta, d’ Ord., 403. 
Seguenzana, Brady, 403. 
Polymorphinine, 187. 
Polystomella, Lam., 164, 203. 
crispa, Linn., 208, 209, 382, 407. 
macella, Fichtel § Moll, 203, 209, 
382, 407. 
striatopunctata, Hichtel g Moll, 
203, 204, 209, 382, 413. 
subuodosa, Miinster, 203, 204, 209. 
Polystomellinz, 202. 
Polytrema, fisso, 1, 2, 15, 164, 200. 
brunnescens, Dana, 390. 
megentericum, Carter, mentioned, 
17. 
miniaceum, Pallas, 16, 200, 
382, 387-393, 407, 416. 
, var. alba, Carter, 201, 209, 
388, 393, 407. 
, var. album, Carter, 201. 
, var.involva * , Chapin., 17, 18, 
201, 396. 
planum, Carter, 201, 209, 210, 387- 
393, 396, 407, 413, 416. 
rubra, Lam., 16. 
utriculare, Carter, 12, 195. 
Pomatoceros triqueter, Linn., 107. 
Pompholyx ophrys, Archer, 339. 
punicea, Archer, 339. 
Ponthiothauma abyssicola, 1. A, Sinzth, 
459 
209, 
mirabile, EF. A. Smith, mentioned, 
455, 456-462. 
Ponthiothauma, EH. A. Smith, On the 
Anatomy of the Prosobranch Genus, 
by S. Pace, 455-462. 
Pontocypris, Brady, 418. 
attenuata, Brady, 419. 
faba, Reuss, 418. 
sicula, Brady, 419. 
Pontoporeiidz, 299. 
Porcellidium viride, Phi/ipp?, 306. 
Porella, Cleve, 50, 76, 81. 
acutirostris, Smitt, 66, 76, 78, 83, 
85, 99. 
527 
Porella bicornis, Busk, mentioned, 80. 
cervicornis, JV/.-Hdw., mentioned, 
18; 00> Es 
compressa, Sow., 77, '78, 85, 99. 
compressa, Hineks, 77. 
concinna, Busk, 77; 
48, 76, 79, 80, 99. 
, granular var., Hincks, 79. 
elegans, A/der, mentioned, 80. 
elegantula, d’Ord., 76; mentioned, 
82; fig. 103. 
elegantula, Tievinsen, 81. 
glaciata * , Waters, 78, 99. 
inflata *, Waters, 83; mentioned, 
76, 84, 85, 99. 
levis, Flem., mentioned, 76, 81, 83. 
, forma Jepralia, mentioned, 
mentioned, 
, var. subcompressa, Busk, 
mentioned, 84. 
levis, Smitt, 83. 
lorea, Alder, mentioned, 76, 80. 
major, Hincks, 83. 
malleolus, Hincks, 76. 
margaritifera, Quoy ¢ Gaim., 76. 
marsupium, MacG.,76; mentioned, 
85. 
minuta, Norm., mentioned, 76. 
nitidissima, Hineks, 76. 
obesa*, Waters, 84; mentioned, 
85, 100. 
patens, Smitt, 77. 
perpusilla, Bus, mentioned, 76, 
81, 82. 
plana, Hincks, 79, 99, fig. 104. 
proboscidea, Hincks, 79. 
propinqua, Simitt, 78, 104. 
rostrata, Hincks, 76. 
saccata, Bush, 81, 82; mentioned, 
50, 76, 78, 85, 99. 
Skenei, E/Z. § Sol., 79. 
, forma plana, Hincks, 79. 
, var. proboscidea, Hincks, 79, 
8). 
——., var. tridens, Kirchenpauer, 
&0, fig. 103. 
struma, Norm., 77. 
surcularis, Busk, mentioned, 77. 
—— (Lepralia) margaritifera, Quoy & 
Gaim., mentioned, 85. 
Porina, d’ Orb., mentioned, 87. 
ciliata, forma dura, Smitt, 74. 
tubulosa, Norm., 86, 100. 
Porites, Lam., 364. 
Posidonia, Bronn, mentioned, 291. 
Caulini, Kon., 292. 
Prolagus sardus, f. Wagner, mentioned, 
275. 
Psammocora. Dana, 889. 
Pseudarthromerus, Karsch, mentioned, 
472, 
LINN. JOURN.—ZOOLOGY, VOL. XXVIII. 38 
