.38 
Owing to the kindness of Mr. Reed, the Echinoidea of this 
Collection have been allowed to visit London, and thus I have 
been enabled to make a more detailed study of them than 
would have been possible in a short stay in York. For this 
privilege I must express my best thanks to Mr. Reed. The 
collection, beside adding considerably to our knowledge of 
distribution, has added one species new to England, the female 
form of E. henslowiy and two new species. 
As the Reed Collection adds in many ways to the record of 
the distribution of the Crag Echinoids and as it includes 
several specimens to which M.S. names have been attached, it 
may be as well to accompany a description of the new species 
by a full catalogue of the collection. 
As the synonymy is treated in detail in a Revision of the 
English Cainozoic Echinoidea ” recently read before the 
Geologists’ Association, it is not repeated here. 
Family TEMNOPLEURIDJE. 
Sub-Family GLYPHOCYPH1N2E. 
Genus Temnechinus. Forbes 18.52. 
This Genus is one of the most interesting and puzzling in 
the Crag fauna. Professor Forbes recognised four species while 
Professor Duncan and Mr. Sladen have since added others from 
the Indian Cainozoics, and Professor A. Agassiz a recent form. 
The five deep depressions in the summits of the interradii and 
the greater flatness that accompanies them in most of the Crag 
specimens are not easily to be explained. Professor Forbes 
regarded this as a definite specific character and separated as 
T. )iielocactm, those of the common species without these 
structures. For reasons that will be more fully discussed in 
the Proceedings of the Geologists’ Association, I have been 
led to regard this as a case of sexual dimorphism and 
consequently propose to merge the two species. The Temnechini 
in the Reed Collection may therefore be catalogued as 
follows : — 
Temnechinus woocU (L. Agassiz, 1846). 
Coralline (h*ag. Ramsholt. Sutton. 
Red Crag. Boynton; Foxhall; Sutton; Waldringfield; 
Woodbridge. 
