Clarkeipterus (Dolichopterus ?) testudineus nov. Page 274 1 Swimming leg referred with some doubt to this species. Natural size 2 Carapace. Holotype of the species. Natural size Horizon and locality. Bertie waterlime. Cranes Corners, Herkimer co., N. Y.

Acutiramus (Pterygotus cf.) buffaloensis Pohlman Page 358 See plates 67, 68, 72–80 3 Two walking legs with their coxal joints, the latter retaining the epicoxite (epx.). Natural size Horizon and locality. Bertie waterlime. Buffalo, N. Y.

Echinognathus clevelandi Walcott Page 322 See plate 58 4 Figure of the type. Shows the greater part of a short robust walking leg, the sculpturing of its joints and the closely arranged series of long, curved spines. Natural size Horizon and locality. Utica shale. Holland Patent, Oneida co., N. Y.

The originals of figures 1 and 2 are in the State Museum, that of figure 3 is in the museum of the Buffalo Society of Natural Sciences, and of figure 4 in the National Museum