448 
Slater, H. H., on the bone-caverns 
of Rodriguez, 364, 
Smith, E. A., on Pinaxia, 300; on 
Japanese Gasteropoda, 414. 
Sphzenogona, new species of, 396. 
Spheeria, new species of, 39. 
Spheroma, new species of, 186. 
Sponges, new, 113, 176, 377. 
Stebbing, Rev. T. R. R., on the 
genus Bathyporeia, 74; on some 
new exotic sessile-eyed Crusta- 
ceans, 184. 
Stilbum, new species of, 35. 
Stimpsoniella Emersonii, on, 442. 
Stuxberg, A., on new North-Ameri- 
can Lithobioide, 188. 
Stylorhynchi, on a remarkable phase 
of sporulation in the, 368. 
Symphyletes, new species of, 71. 
Syralt M., on the reproductive or- 
gans of the Eels, 304. 
Teeth of the Newt, Frog, Slowworm, 
and Green Lizards, on the develop- 
ment of the, 153; of the Ophidia, 
155. 
Temnocephala chilensis, on the geo- 
graphical distribution of, 336. 
Terebra, new species of, 415. 
Terias, new species of, 396. 
Thamniscus, new species of, 335. 
Thracia, new species of, 52. 
Thury, M., on the action of light on 
the development of the young of 
Frogs, 376. 
Thysanoprymna, description of the 
new genus, 400. 
Tillodontia, characters of the new 
order, 307. 
Titurius, characters of the genus, 63. 
Tomes, C. 8., on the development of 
the teeth of the Newt, Frog, Slow- 
worm, and Green Lizards, 155 ; 
on the structure and development 
of the teeth of Ophidia, 155. 
Tonicella marmorea, on, 442. 
Tophoderes, new species of, 412. 
Trachichthys, new species of, 78. 
Trachycephalus, description of the 
new genus, 128, 
Trachydermon, observations on some 
species of, 442. 
-INDEX. 
Traquair, Dr. R. H., on the structure 
and systematic position of the 
genus Cheirolepis, 237 ; on some 
fossil fishes, 258. 
Trichastoma, new species of, 402. 
Trichinopus, description of the new 
genus, 408. 
Trigonia, on a third new tertiary 
species of, 316, 
Tryphocharia, new species of, 61. 
Tunicata, on the embryogeny of the, 
321. . 
Tylenchus millefolii, on, 342. 
Umbellularia, on some young stages 
of, 312. 
Uracanthus, new species of, 62. 
Uromyces, new species of, 36. 
Ussow’s, M.,zoologico-embryological 
investigations, 97, 209, 317. 
Varieties, do they wear out or tend 
to wear out ?, 192. 
Venturia, new species of, 40. 
Venus, new species of, 49. 
Vertebrata and Annelida, on the re- 
lationship of the, 94. 
Villot, A., on the peripheral nervous 
system of the marine Nematoids, 
235, 
Vithora, new species of, 137. 
Walden, Viscount, on new species of 
birds from Burma, 400. 
Wallich, Dr.G.C., on the Rhizopods, 
370. 
Wardichthys, description of the new 
genus, 262. 
Waterhouse, C. O., on new genera 
and species of Coleoptera, 403. 
Willemoes-Suhm, Dr. R. von, on 
some young stages of Umbellularia, 
312. 
Wood-Mason, J., on the genus Dei- 
damia, 131; on the geographical 
distribution of Temnocephala chi- 
lensis, 356. 
Young, Messrs., on new Carboniferous 
Polyzoa, 333. 
Zeller, Dr. E., on Leucochloridium 
paradoxum and the migrations of 
various Distoma, 162. 
Zoophytes, new genera and species 
of 172. 
END OF THE FIFTEENTH VOLUME. 
PRINTED BY 
TAYLOR AND FRANCIS, 
RED LION COURT, FLEET STREET. 
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