506 INDEX. 
Ohola pacifica, Bergh, 101 ; mentioned, 86, 
87, 102. 
Oniscidea, 226. 
Oniscus conglobator, Pall., 219. 
globator, Pall., mentioned, 219. 
imbricatus, Fabr., 219, 
serratus, Fabr., 219. 
Ophlitaspongia arbuscula, Row *, 347, 389, 
596, 400 ; mentioned, 290; fig., 348, 
350. 
digitiformis, Row*, 351, 389, 396, 
400; mentioned, 290. 
horrida, Row *, 349, 389, 396, 400; 
mentioned, 290; fig., 359. 
Ophthalmias, Rathbun, 431. 
cervicornis (ferbat), 432, 475. 
curvirostris (d. M.-Edw.) Klunz., 
431, 475; distrib., 410, 420; a good 
species, 407. 
Oreophorus horridus, Riipp., 409. 
Oscarella cruenta, Carter, 385, 392. 
Oscarellide, 385, 392. 
Osthimosia, Judl., mentioned, 160. 
Ostracoteres=seq. 
Ostracotheres, H. M.-Edw., 465. 
affinis, H. M.-Edw., 415. 
cynthiz, Nod., 465, 475; distrib., 415, 
421. 
tridacne, Riipp., 416. 
Ostrea, Linn., mentioned, 283. 
Oxyrhyncha, 480; list, 410; summary, 
417. 
Oxystomata, 427; list, 409; summary, 
417. 
Ozius rugulosus, Sé7mp., 414. 
Pachastrella abyssi, Sollas, mentioned, 310. 
exostotica, O. Schmidt, 385, 393. 
Pachastrellide, 385, 3938. 
Pachychalina alveolopora, Topsent, 388, 
395. 
furcata, Row ?, 388, 395. 
variabilis, Dendy, 321, 588, 395; men- 
tioned, 289. 
Pachycheles, Stimp., 263. 
sculptus, M.-Edw., 263. 
Padina pavonia, J. Ay., 78, 402. 
Pagrus spiniter (Forsk.), 481. 
Paguristes, Dana, 260. 
jousseaumi, Bouv., 260. 
Paguristes jousseaumi, var. glabra, Bowv., 
mentioned, 260. 
var. intermedia, Bouwv., men- 
tioned, 260. 
var. perspicax, Nob., mentioned, 
260. 
Paguride, 260. 
Pagurus, Fabr., 261. 
depressus, Heller, 261. 
' euopsis, Dana, 261. 
tinctor (Forsk.), 261. 
tinctor, Nobili, 261. 
varipes, Heller, 261. 
Palicide, 473; summary, 417. 
Palicus, Phil., 473. 
jukesii, White, 416, 473. 
whitei (Miers), Alc., 473;  distrib., 
416; new to Red Sea, 407, 421. 
Pallenidee, 257. 
Pallenopsis, W2/son, 257. 
Crosslandi, G. H. Carpenter *, 257; 
mentioned, 258, 259. 
Palmicellaria, Ald., mentioned, 160. 
Paludicella, Gerv., mentioned, 241. 
Paraclistostoma, de Man, 469. 
leachi: (Aud. & Sav.) Nob., 469; 
distrib., 416, 421. 
Paranotonyx curtipes, Wob., 415. 
Parasellidse, 224. 
Paratetilla, Dendy, mentioned, 382. 
cineriformis, Dendy, mentioned, 511,, 
382. 
eccenirica, Row *, 306, 387, 394, 399; 
mentioned, 289; fig., 809, 310, 311, 
312, 382. 
merewiensis (Carter) Dendy, men- 
tioned, 311, 312. 
Parathoé rotundata, Miers, 410. 
Parthenope, Fadbr., 454. 
acuta, Klunz., 411; in Red Sea, 408. 
hoplonotus, Rathbun, 455. 
horrida (Linn.) Fabr., 434; distrib., 
411, 420. 
Parthenope, Weber, 435. 
Parthenopide, 434; list, 411; summary, 
417. 
Pearl-shells, mentioned, 277. 
Pedicellina, Sars, its minute excretory 
orvans, 155, 238, 239. q 
cernua (Pall.) Hincks, wentioned, 
252. 
