58 
Eryma, from the great resemblance the tergal folds on the 
carapace have to those in EHryma elegans, (Orrrt.) from the 
zone Cosmoceras Parkinsom, of Longwy Moselle. The absence 
of the anterior legs which would have decided the question 
of the generic place of our fossil, leaves the determination in 
doubt which time may possibly soon clear up. It may with 
equal justice be referred to Pseudoglyphea, (OprEt.) or Glyphea, 
(Mxryer,) as to Hryma, inasmuch as the carapace of our fossil 
might be placed in either genus; so until the anterior legs with 
the chelew are found, I propose to call it Eryma Guisei, Wr. — 
Fig. 2. Fig: th: 
ERYMA GUISEI, Wright. 
I dedicate this species to our much esteemed and excellent 
President, Sir Witutam Vernon Guise, Bart., F.L.S., F.G.S., 
&c., as a recognition of the extreme interest he takes in all 
Natural History discoveries made in the Cotteswold country. 
The cephalothorax of this Astacomorphous Crustacean is 
divided into three regions, by two well-marked deep lines; the 
first is compressed on the sides, is narrow on the tergal region, 
and extends outwards into the rostrum. The groove which 
divides this from the middle region is very deep, and the entire 
surface is covered with short, sharp, prominent granules, which 
are much better shown in a specimen I obtained since the type 
carapace was figured; this segment is not so deep as the others, 
iO at 
