Bibliographical Notices. 419 



period in India-Burma, though all direct communication between 

 the Miocene Ocean of Europe and India was disconnected during 

 the Miocene period." 



In subdividing the Tertiary System of Burma the author finds 

 that the Upper or Irrawaddi (Pliocene) Series contains the remains 

 of land and freshwater (fiuviatile) life, and is based on a conglome- 

 rate containing numerous fossil bones, such as those of Hippotherium 

 and Acerotlierium. 



(It was on an exposed ledge of this conglomerate that Mr. Noetling 

 discovered, in association with a fossil tooth of Hippotherium ante- 

 lopinum, the stone implement described in ' Xatural Science,' vol. x. 

 no. 62, p. 234, 1897.) 



The Lower or Arrakan (Miocene) Series in its subdivisions com- 

 prehends : — (1) The Upper or Pegu division (Miocene), no Nummu- 

 lites ; (2) The Middle or Bassein division, with Xummulites 

 (Eocene) ; (3) The Lower or Chin division, without ISTummulites 

 (Eocene or Cretaceous ?). It is noted that the geology and fossils of 

 the Pegu division have been best known and that those of the 

 Bassein and Chin divisions have not been so closely collected and 

 studied. The Pegu division comprises : — (1) The Yenangyoungiau 

 beds, marine, largely littoral, and partly estuarine ; and (2) The 

 Promean, of estuarine origin, with its petroleiferous strata. 



The description and corollation of the formations and their zones 

 in Lower Burma (pages 17-26) and in Upper Burma (pages 27-38) 

 are followed by tables of the vertical and zonal distribution of the 

 fossil molluscan fauna (pages 19-53). Two hundred and eight 

 species, including some varieties, besides indeterminate forms, are 

 described at pages 101-378. 



The relationships of wide territorial types, namely, (1) the Gallic, 

 Pacific, and Mediterranean groups of Palaeogene species, and (2) the 

 Identical, Subidentical, and Evolutionary Neogene species (page 98), 

 are defined, and their proportions stated. 



The proofs are given of an Eastern migration of European species, 

 assumed by the late H. M. Jenkins in 1864 to have proceeded in 

 Miocene times, but by F. Noetling (in the work before us) as having 

 been in the Eocene period. This extensive subject is carefully and 

 philosophicaUy treated at pages 39-100, and elucidated with elabo- 

 rate successional and statistical tables. 



Noetling agrees with Martin that there is no evidence to warrant 

 the adoption of " Oligoccne " for any part of the Indian Tertiary 

 System resting on that regarded as Eocene, whether in Baluchistan, 

 Western India, Burma, Java, Sumatra, or Borneo. 



Biologia Centrali-Aynericana. — Hemiptera-Heteroptera. Vol. II, 

 By G. C. Champiox. Pp. xvi & 416. With 22 plates. Loudon, 

 1897-1901. 



The first part of this work, comprising the families Pentatomidae, 

 Coreidie, Lygjeidse, Pyrrhocoridte, and Capsidae, and elaborated by 

 Mr. Distant, was finished in 1893. The remaining nineteen families 

 of the Heteroptera are worked out by Mr. Champion in the present 



