4IO Genus Latirus. 



This list does not call for especial remark. Systematists 

 despair of tracing most of the species described by Anton 

 and Lesson, and two or three of Chemnitz are also im- 

 possible to fathom. It will be noticed that I have removed 

 Peristernia pulchra^ Carolince^ and Panluccice to Engina^ 

 and it may be that all the species with crenulated denticu- 

 jations on the outer lip, and tessellated arrangement of 

 painting referred hitherto to Peristernia^ may find their 

 place there ultimately. Latirus contemptus (Ad.) is, 

 according to Mr. E. A. Smith, a Murex allied to M. badius 

 (Reeve). Peristernia nodulosa (A. Ad.), a white, chalky 

 looking shell, with no sign of columellar plaits, is repre- 

 sented by two specimens in the British Museum, it is 

 evidently a Coralliophila^ and the Turbinella Thersites of 

 Reeve, of which I have examined the unique specimen also 

 in the British Museum, is a young specimen of some 

 unknown species of Fasciolaria^ or, perhaps, Tudicla. 



(XVIII.) Museums^ &c.y Consulted. — The material on 



which I have mostly relied in giving this account and 



revision of the genus, is to be found either in the National 



Museum, S. Kensington, or my own collection. For the 



last twenty-four years I have endeavoured to make my 



series as perfect as I could, and with the result that over 



two-thirds of the species described are now contained 



therein. The National Collection has, excepting in a few 



cases, supplied the deficiencies, and I have several times 



carefully examined the large stores contained there, being 



befriended and aided in every possible way by Mr. Edgar 



A. Smith. There are a few mostly large, but fine species 



contained in the Museum, Owens College, Manchester, 



mainly from the Cholmondeley and Walton collections, 



and the Derby Museum, Liverpool has some good type 



shells. One or two of the more select species contained in 



the Leyden Museum, Holland, I have been able to examine 



