D. Skeleton of Erpetobrachium mazonensis Moodie. cl, clavicle; h, humerus; r, radius; sc, scapula; u, ulna. × 2.

E. Rib of Mazonerpeton costatum Moodie. × 2.5. Originals in the Yale University Museum.

In another nodule (No. 804, Yale Museum) there is a single bone preserved which resembles, to a great extent, a rib of the present species ([fig. 15, E]), although somewhat larger, and it has been provisionally identified as such. The element is very slightly curved, but shows the expanded head of the rib of this species.

Measurements of the Type of Mazonerpeton costatum Moodie.

No. 800 (777), Yale University Museum:mm.
Length of portion of skull preserved14
Length of right clavicle16
Width of right clavicle 4
Length of dorsal region represented30
Length of cervical rib 8
Length of dorsal rib 6-5
Length of caudal rib 3
Length of caudal portion of body preserved55
Length of mandible15
Greatest width 6
Length of right humerus10
Greatest width of humerus 2
No. 804 (332), Yale University Museum:
Length of rib11
Width of head of rib 2
Diameter of shall 1

Sparodus sp. (?).

Dawson, Phil. Trans. Roy. Sue. London, pt. II, p. 643, pl. 40, figs. 52 to 56, 1882.

Dawson, Proc. and Trans. Roy. Soc. Canada, XII, p. 75. 195.

Type: Specimen in the Peter Redpath Museum of McGill University.

Horizon and locality: Coal formation at the South Joggins, Nova Scotia.