EARLY DEVONIC HISTORY OF NEW YORK AND EASTERN NORTH AMERICA 1 45 



here identified with it. The latter are also of considerable size, the orna- 

 mental transverse lines being crested with round tubercles which in some 

 places, especially near the sulci of the angles, may be elevated, the inter- 

 spaces being broad and smooth and the longitudinal line at the middle of 

 each face always faint. There is no difference in the general type of external 

 ornament and hence the Gaspe species may be identified with that from the 

 Oriskany of New York. 



Localities. In the upper beds at Lehuquets Cove, Indian Cove and 

 above Little Gaspe. 



GASTROPODA 

 Platyceras leboutillieri nov. 



Plate 14, figures 1-4 



Shell small, erect, apex minute not exsert ; minutely coiled for i^ 

 volution, then abruptly expanded with a spiral twist, the body whorl being 

 erect and subcylindrical and the total volutions less than two. There is no 

 evidence of spirality in the body whorl beyond the first third of the shell. 

 Section of bod)' whorl circular. Shell growth somewhat irregular in late 

 stages but apparently without nodes. 



Aperture but slightly undulated. 



Hight from apex to stoma 18 mm, diameter of body whorl near aperture 

 14 mm. 



This small species is of the type of P. spirale and P. lamel- 

 1 o s u m Hall, of the New Scotland fauna (Helderbergian), more particularly 

 of the latter. It is a rare species in the Gaspe limestone. 



Locality. Perce Rock and Grande Greve. 



Specific term. LeBoutillier, a Jersey name prominent in the history of 

 the fishing in Gaspe and specially, Philip LeBoutillier of Perce, contemporary 

 and aide of Sir William Logan. 



Platyceras cf. fornicatum Hall 



Plate 14, fipjures 8, g 



See P. fornicatum Hall. Palaeontology of New York. 1867. 4: 11, pi. 4, fig. 1-5, 

 7, 8. 18-20 



The most common Platyceras in the limestones is a stout, subtri- 

 hedral shell with rather small spire, flattened upper whorl surface and deep 

 lower surface, the flattening making a distinct angular ridge along the 

 whorl. The surface bears a few irregularly scattered low nodes. Platy- 

 cerasfornicatum is a shell from the fauna of the Helderberg limestone 

 of New York and though it may not prove fully identical with this serves 

 the purpose of comparison which is nearly all that can be safely attempted 

 among these protean capulids. 



Locality. At various outcrops of the upper beds at Grande Greve, 

 Indian Cove and Shiphead. 



