230 Bibliographical Notices. 



(livisious of some of the existing groups) are to be found among the 

 extinct forms. We notice, for example, the inclusion in the order 

 of a number of Eocene genera, such as Plesindapis, Indrodon, 

 and JJicrosj/ops, which were originally regarded as lemuroids or 

 insectivorcs, but are now considered by American paUeontologists to 

 represent a primitive group of rodents — the Protoglircs. Whether 

 this identification is well founded remains to be seen. Another 

 important and apparently well-justified change is the transference 

 of tho Oligocene and Pliocene Trechomi/s, Theridomi/s, and their allies 

 from the neighbourhood of the Octodontidtc to a position in the 

 Sciuromorpha between the Anomaluridic and the Sciuridte. The 

 extinct Maltese Leiihia, together with J'scudosciunts and Sciaroides, 

 is now definitely placed in the Anomaluridie, although the right of the 

 latter to retain its position in the Sciuroraorplia is only provisionally 

 admitted. 



In accordance with advanced modern views, we find the old 

 genus Sciurus split up into a number of separate generic groups ; 

 and we note many other changes in nomenclature, such as the 

 substitution of Jaculidte for Dijjodidre, thus showing that the author 

 is keeping his work well abreast of the latest innovations. Why, 

 however, Myoxidse is retained in place of Gliridoe is not easy to 

 understand ; and the substitution of the name Agoutida5 for 

 Dasyproctidae, on account of the replacement of the generic term 

 Ccelor/enys by Agouti, seems altogether uncalled for, seeing that 

 JJasi/procta still remains as the generic title for the agutis. The 

 number of new specific names proposed in this fasciculus appears 

 to be very small. R. L. 



Museum Uandhooks. 

 The Manchester Museum, Owens Oollege. 1904. 



Under the direction of Dr. W. E. Hoyle, the Director, papers 

 relating to the Manchester Museum and its contents are from 

 time to time issued to the public. For the most part these are 

 gathered from various serial journals, consequently their re-issue 

 in the present form will be welcomed. 



Three of these are now before us, of which two deal with 

 matters paheontological and one with recent Cephalo})ods. 



Mr. H. Eolton's 'Palaeontology of tho Lancashire Coal-Measures ' 

 provides a useful summary of this subject, especially helpful to 

 those working in the museum, where the specimens described are 

 deposited. 



Prof. \V. Boyd Dawkins has prepared the second of these ])aloeon- 

 tological pamphlets, ' On the ])iseovery of Elephus antiqmis at 

 Blackpool.' lie takes for his text the finding of a tooth of this 

 s])ecies, which he, with the aid of his wife and son, dug uj) by tlie 

 aid of umbrellas ! Having described the tooth he passes on to 



discuss the question, "How did the tooth come to be 



embedded in the Lower Bouldcr-Clay?" h\ answering this question 

 the author gives some interesting and valuable information on tbe 

 deposition of the boulder-clay and of other fossil Mammalia found in 

 association with this Elephant. 



