504 



INDEX. 



M 



Teleostean ova, on oleaginous spheres 



in the yolk of, 84. 

 Tethya stipitata, note on, 4G0. 

 Thomas, O., on Hesperouiys pyrrho- 



rhinus, 421. 

 Thrinacophora, new species of, 483. 

 Tissue, on the larval theory of the 



origin of, 193. 

 Trachya, new species of, 457. 

 Trachytedania, new species of, 336. 

 Traquair, Dr. R. H., on a new genus 



of Carboniferous Selachian spines, 



498. 

 Trichostemma, new species of, 488. 

 Tristychius fimbriatus, observations 



on.' 493. 



Trochoderma, characters of the new 



genus, 344, 493. 

 Ussow, Dr. M., on a new freshwater 



Ooelenterate, 110. 

 Vesperugo, new species of, 124. 

 Vomeruia,new species of, 337. 

 Wallich, Dr., on division in the 



Amojban Rhizopods, 30. 

 Warpachowsky, N., on a new form 



of Opalina, 419. 

 Waterhouse, C. O., on a new species 



of Sphenophorus, 318. 

 Ypthima, new species of, 183. 

 Zukal, H., on the bulbilli of Fungi, 



247. 



END OF THE EIGHTEENTH VOLUME. 



PRINTED BY TAYLOR AND FRANCI.S, 

 RED MON COURT, FLEET STREET. 



