Bibliographical Notices. 63 



parisons have been made of their contents, they appear much to 

 resemble those of Omori, and, like it, are of very remote antiquity. 



In one case, however, the removal of part of a canal-bank, made 

 230 years ago, exposed a shell-heap composed of species still extant, 

 without any ancient potter j' ; hence the extinction of the old species 

 found in the mounds of Omori and elsewhere, and the changes of 

 sea-level, were certainly before, probably long before, that date. 



The comparison of the Omori pottery with that found in other 

 parts of the world, and the comparison of the ancient with the 

 modern fauna of Omori, are full of interest, and have been worked 

 out with the acumen and experience of a weU-trained naturalist and 

 antiquary. 



The following is the list of Gasteropods found at Omori : — 



Fusus inconstans, Lischke, Potamides, sp. 



Rapana bezoar, Linnc. Lampauia, sp. 



Heuiifusus tuba, Gmelin. Natica Lamarckiana, Dudos. 



Purpura luteostoma, Chemnitz. Turbo granulatus, Gmelin. 



Eburna japouica, i?S(?/jZ;e. Rotella globosa, Gmelin. 



Nassa, sp. 



Of the Lamellibranchs in the old mounds there are : — 



Area subcrenata, Lischke. Cytherea meretrix, LinnS. 



inflata, Reeve. Tapes, sp. 



granosa, Linne. Solen strictus, Gould. 



Dosinia Troscheli, Lischke. Lutraria Nuttali, Conrad. 



Cyclina chinensis, Chemnitz. Ostrea denslamellosa, Lischke. 



Mactra veneriformis, Deshayes. , sp. 



Mya arenaria, Linne. 



The absence (in the old mounds) of edible species now existing in 

 the neighbouring sea shows that, in all probability, a new or modi- 

 fied fauna has come in since the period of these kitchen-middings. 

 So also the relatively large and luxuriant growth (for the most part) 

 of both the shells of mollusks and the bones of mammals found in 

 these mounds have reference to long-past time, previous to the 

 introduction of stages of degeneracy due to changed conditions 

 either of nature or civilization. 



An Introduction to the Study of Fishes. By Albert C. L. G. 

 GiJNTHEE. 8vo. Edinburgh : A. and C. Black, 1880. 



Owing to the author's connexion with this journal, we must abstain 

 from giving an ordinary notice of the pi-esent volume. We think it 

 due to our readers, however, to call their attention to its appearance, 

 and to indicate its nature in very general terms. 



Dr. Giinther's work is founded on the notes and other materials 

 got together by him for the preparation of the article " Ichthyology " 

 in the new edition of the ' Encyclopedia Britannica,' and may there- 

 fore be regarded to some extent as an expansion of that article. He 

 commences with a history of ichthyological research, which is followed 



