127 



rostra ; under each one, distinctly stating the shell structure 

 to be punctate, which character at that time afforded me 

 the principal means of distinguishing these from Athyroid 

 species of similar form, as Meristella haskinsi, M. barrisi and 

 M. doris, which with Jitrypa scitula (4th Dist. Report) ^Meris- 

 tella scitula, have at a later period been placed by Mr. Bil- 

 lings among the typical forms of his Genus Charionella. 



Having ascertained some farther characters of these 

 punctate Terabratuloid shells, I proposed in the Fourteenth 

 Report on the State Cabinet, 1 page 102, the name Cryp- 

 tonella, giving as one of the characters "shell structure 

 finely punctate." I remarked in a concluding paragraph : 



"The species of this genus are more elongate than Me- 

 rista and Meristella, and those now known are less dis- 

 tinctly marked by mesial fold and sinus ; while the beak is 

 more attenuate, often a little flattened, and rarely so closely 

 incurved as , in the genera cited. The punctate structure 

 of the shell is a distinguishing feature." 



In the Fifteenth Report on the State Cabinet, I gave (at 

 page 161 [133], pi. 3) some illustrations of the muscular 

 imprints, dental lamellae, etc., with figures of a single 

 additional species from the Lower Helderberg group. 2 



1 Made to the Legislature April 10th, 1861, and published in July 1861. 



3 In the Canadian Naturalist and Geologist for October, 1862, we find the 

 following exposition of the relations of the genus Cryptonella : 



" The genus Cryptonella, illustrated on PI. 3, p. 133, is precisely identical 

 with Charionella, described by me in the Canadian Journal of March, 1861, 

 p. 148, and illustrated in the May number, pp. 273, 274. It includes the 

 species described by Prof. Hall in the Thirteenth Report under the names of 

 Meristella Haskinsi, M. Barrisi, M. Doris, Terebratula Lincklceni, T. recti' 

 rostra, T. lens and T. planostria. Besides these the Jitrypa scitula of the 

 New York Reports, C. Circe, and apparently a number of European species 

 belong to it. Cryptonella was first published in July or August, 1861, three 

 or four months after the learned author became acquainted with its characters 

 through the study of my papers." 



The following is the description of the genus Charionella, copied from the 

 Canadian Journal (March, 1861), No. xxxu, p. 148 : 



Genus Charionella. " Since the foregoing article on Devonian fossils 



