504 



INDEX. 



Sporidesmium, new British species of, 



121. 

 Steenstrup, J., on the structure of 



the branchial cavity of the Zeugo- 



pteri, 72. 

 Stephania, characters of the genus, 



\3. 

 Suess, Prof. E., on the existence of 



Hyalonema in a fossil state, 404. 

 Svviiihoe, R., on a new species of 



Martes, 286. 

 Taylor, Rev. R., on the habits of 



Zosterops dorsalis, 140. 

 Tetragnatha, new species of, 467. 

 Tetragonopterus, new species of, 30. 

 Thelocarpon, new species of, 23. 

 Theridion, new species of, 458. 

 Thomisus, new species of, 456. 

 Thorell, T., on the morphology and 



systematic position of the Argulidae, 



149, 268, 436. 

 Thylacoleo carnifex, on the dentition 



of, 148. 

 Tieghera, M. van, on the amylaceous 



globules of the Floridese and Co- 



ralhnese, 117; on the structure of 



the anthers in the Aroideae, 138. 



Traquair, Dr. R. H., on the anatomy 



of Calamoichthys, 114. 

 Trichia, new British species of, 56. 

 Tursio Eurynome, note on, 100. 

 Unger, Prof., on the organic bodies 



contained in ancient Egyptian 



bricks, 141. 

 Urocentrum Turbo and Peridinium 



Cypripedium, on the affinities of, 



2. 

 Van der Hoeven, J., on the genus 



Menobranchus and its natural affi- 

 nities, 363. 

 Verrucaria, new British species of, 



104. 

 Volutes, new species of fossil, 375. 

 Walker, J. F., on some Lower-Green- 



sand fossils, 31, 381. 

 Whales, notes on some, 495. 

 Zamenis, new species of, 27. 

 Zeugopteri, on the structure of the 



branchial cavity of the, 72. 

 Ziphius, on a cranium of, 255. 

 Zoophytes of Devonshire, additions 



to the, 426. 

 Zosterops dorsalis, on the habits of, 



140. 



END OF THE EIGHTEENTH VOLUME. 



PRINTED BY TAYLOR AND FRANCIS, 

 RED LION COURT, FLEET STREET. 



^^f 



