Report of the State Geologist, |95 



fine specimen of Asaphus maximus^ Locke, from the Hudson 

 River sandstones in the quarries at Rex- 

 ford Flats, Saratoga county. The fact 

 that fossils have been almost unknown in 

 these rocks renders this large and entire 

 trilobite altogether unique. Principal J. M. 

 Dolph, of Port Jervis, has contributed a series 

 of fossils from the •' trilobite ledge " at that 



place, among them an interesting imdescribed ^he cephaion of Daiman- 

 species of trilobite with the general aspect of uesDoipu, s^.nov. 

 Dalmanites dentatus^ Barrett, but having the row of marginal 

 spines restricted to the anterior curve of the head, and the spines 

 themselves much produced on the frontal margin. 



Types and Typical Specimens. — There has been a prevalent 

 and unwarranted misapprehension, which has sometimes led to 

 misstatements, in regard to the number of tijpes of fossils or 

 original specimens from which generic and specific descriptions 

 have been drawn, belonging to the palseontological collections of 

 the Museum. Such specimens form an important element in the 

 scientific valuation of any collection, and, therefore, to have 

 definite information with reference to their number and char- 

 acter, ao well as to afford convenient lists for the use of workers 

 both in and out of this Museum, I submitted to you in my last 

 report a detailed inventory of all types and illustTattd specimens 

 of the PalcBozoic Crustacea in our possession, with a citation of 

 every work in which such illustrations have appeared. This list 

 summarized as follows : 



Original specimens 248 



Total illustrated specimens 496 



Herewith I communicate similar lists covering the Annelida 

 and Cephalopoda, of which the totals are : 



Original specimens .... 205 



Total illustrated specimens 408 



It is my desire and intention to continue these lists in future 

 reports, until we have a completed statement of the number of 

 our typical specimens of fossils of all zoological groups. 



PespectfuUy submitted, 



J. M. CLAEKE, 



Assistant PalcBontologist. 



