220 



Camerella varians. (Billings.) 



(Canadian Nat. and Geol. vol. iv, p. 445 : Dec. 1859. Geol. Can., p. 12Y.) 



EemarJcs. — This species, or one almost identical witli it, occurs along 

 •with 0. parva both at Table Head and four miles north-east from Portland 

 Creek ; also in the nodules of white limestone on the south side of Cow 

 Head. It was first discovered in the Chazy limestone at the IMingan 

 Islands, and was afterwards collected near the village of Chazy in New 

 York, in the same formation, by J. Richardson. 



Camerella calcipera. (Billings.) 



{Canadian Nat. and Geol., vol. vl. p. 31 : Aug. 1861. Geol. Can., vi. p. 231.) 



Remarks. — This species occurs in the nodules of white Kmestone on the 

 south side of Cow Head in Division P. It is very characteristic of the 

 limestone at Point Li^vis and Phillipsburgh. At all these localities it is 

 associated with Bathyurus Safforcli. It occurs also at St. Timothy, near 

 the head of the Beauharnois Canal, and at Norton's Creek, in the upper 

 part of the Calciferous formation. 



Rhynchonblla Corinthia. (N. sp.) 



Description. — Transversely elliptical ; width one-fourth, or one-third 

 greater than the length. Ventral valve strongly convex, with a wide 

 rounded mesial sinus which dies out at the umbo. Dorsal valve strong]j^ 

 and uniformly convex, with a wide rounded but not greatly elevated mesial 

 fold. Surface with numerous small angular ribs, which bifurcate two or 

 three times before reaching the margin ; from three to five in one line, 

 usually seven in two lines. Width about 8 lines ; length 6 lines. 



Of this species only a few fragments have been collected, but they are 

 sufiicient to show that it is different from any yet described. The form of 

 the valves is that of a Rliynchonclla, somewhat resembling the globose 

 individuals of R. plena. But the bifurcation of the ribs is suggestive of 

 Orthis. The beaks are not visible in any of the specimens. 



Locality and Formation. — N, Table Head, Newfoundland ; Quebec 

 group. 



Collector. — J. Richardson. 



LAMELLIBRANCHIATA. 



Euchasma Blumenbachium. (Billings.) 



(CoNOCARDiuMBLnMENBAOHioM. — Can.Nat.and GcoZ.,Vol. IV, p. SBO.Geol.ofCan., p. 113.) 

 Remarks. — This species occurs in Divisions Gr and H, at Port aux Choix, 

 Table Head, and Cape Norman. 



