480 
Scieena, new species of, 318. 
Sclerostomum equinum, on the de- 
velopment of, 447. 
Scorpzena, new species of, 317. 
Scorpis, new species of, 317. 
Scyphia, new species of, 181. 
Seeley, H., on Torynocrinus and 
other new and little-known fossils 
from the Upper Greensand, 173 ; 
on the evidence that the Pterodac- 
tyles are not reptiles, 321. 
Simpulopsis, new species of, 53. 
Siredon mexicanus, on the develop- 
ment of, 156. 
Spathoptera, new species of, 369. 
Spheroma, on a new species of, 28. 
Sphyrzena, new species of, 318. 
Spiders, on the presence of teeth on 
the maxillz of, 399. 
Sporetus, new species of, 434. 
Staveley, Miss, on the presence of 
teeth on the maxille of Spiders, 
399. 
Steindachner, Dr., on new fishes from 
the Iberian peninsula and South 
America, 311, from Port Jackson 
and Port Natal, 317. 
Stimpson, Dr. W., on the Hydrobinee 
and allied forms, 393. 
Stizenberger, Dr. E., on the Saxicolar 
species of Opegrapha, 437. 
Strongylus, new species of, 335. 
Taylor, R., on the naturalization of 
Zosterops dorsalis in New Zealand, 
237. 
INDEX. 
Terebriporidx, on the perforating 
Bryozoa of the family, 471. 
Thelopsis, new British species of, 348. 
Thelotrema, new British species of, 
349. 
Torynocrinus, description of the new 
genus, 173. 
Trichine, observations on the, 331. 
Trichodina pediculus, on the anatomy 
and physiology of, 401. 
Trichopterygidz, new species of, 141. 
Trophon, new species of, 277. 
Trygonoptera, new species of, 319. 
Turbellaria of Guernsey, list of the, 
388. 
Turritella, new species of, 276. 
Tyrinthia, description of the genus, 
371. 
Veale, J. P. M., on the Dactylethre, 
391. 
Verrill, A. E., on a new fluid for pre- 
serving natural-history specimens, 
385. 
Verrucaria, new British species of, 
63, 348, 350; on the species of, 
found in Lombardy, 183. 
Verrucariz, on the reproductive or- 
gans of the, 270. 
Vespertilionidee, synopsis of the ge- 
nera of, 89. 
Whales, note on domesticated, 312. 
Ziphiorrhynehus eryptodon, descrip- 
tion of, 94, 303. 
Zosterops dorsalis, on the naturaliza- 
tion of, in New Zealand, 237. 
END OF THE SEVENTEENTH VOLUME. 
PRINTED BY TAYLOR AND FRANCIS, 
RED LION COURT, FLEET STREET. 
