Lorraine Faunas of New York and Quebec 259 
figures on the same page as Orthis testudinaria, but that it is not 
so abundant as the Dalmanella at Lorraine. The associated form 
figured from Lorraine as Pleurotomaria is a Hormotoma of the 
suhlaxa type. The TentacuUtes, said to be more abundant near 
the upper part of the rock section at Lorraine, is the form with 
finer longitudinal striae described in this bulletin under Cornu- 
lites. In the work by Emmons the overlying Oswego gray sand- 
stone is described separate from the Lorraine shales. Earlier in 
the same part of his discussion, Emmons notes the presence of 
Trinucleus ^Howard the upper part of the Lorraine shales, in a 
very fine bluish slate. The bed was exposed in repairing a mill 
dam near the center of Lorraine. ’’ Other species from the Orthis 
crispata horizon, northeast of the bridge in Lorraine, are: the so- 
called Heterocrinus and Glyptocrinus columnals, Pholidops sub- 
truncata, Plectambonites, Rafinesquina alternata of very flat form, 
Catazyga erratica, Cyrtolites ornatus, Archinacella pulaskiensis, 
Byssonychia radiata, Modiolopsis belonging to the concentrica 
group, Colpomya pusilla, Cuneamya resembling the form here 
described as variety brevior, Clidophorus planulatus, Ctenodonta 
lorrainensis, Lyrodesma poststriatum, and Calymene. 
Orthis crispata occurs also half way between Lorraine and Worth- 
ville, at the locality described elsewhere in these pages as 2 miles 
west of Worth ville. Here it is associated with: the columnals 
usually referred to Heterocrinus and Glyptocrinus, Pholidops 
subtruncata, Dalmanella, Catazyga erratica, Protowarthia, Cyr- 
tolites ornatus, Hormotoma belonging to the sublaxa variety, 
Cornulites having the appearance of TentacuUtes, Byssonychia 
radiata, Colpomya pusilla, Cuneamya, apparently Ischyrodonta 
unionoides, Clidophorus planulatus, Ctenodonta lorrainensis, Ly- 
rodesma poststriatum, Calymene, and Trinucleus. 
The following is a description of Orthis crispata, drawn chiefly 
from specimens obtained 2 miles west of Worth ville, on the road 
to Lorraine, since here the best preserved specimens were found. 
Largest pedicel valve found, 17 mm, in length and at least 20 
mm. in width, the lateral margins being not well preserved on 
one side. Largest brachial valve found, 12 mm. long and 16 mm. 
wide. The convexity of the pedicel valve was 4 mm., and that of 
the brachial valve 2 mm. 
Pedicel valve more convex than the brachial valve, the greatest 
convexity being reached about a fourth of the length of the shell 
