CHELONIA. 
Bept, 19 
, CHELONIA. 
Iunther, A. “ Tortoise.” Encycl. Brit, xxiii, pp. 455-460, figs. 
The following arrangement is adopted : — 
Subord. I. Athecas. 
Fam. Sphargidce. 
Subord. II. Testudinata. 
Series a. Oryptodira. 
Group, a. Digitata. 
Fams. Testudinidce , Platysternidce , Bacnido ?, Clielydridce , Staurotyp - 
idee, Cinosternidce , Pseudotrionychidce. 
Group^B. Pinnata. 
Fam. Chelonidce. 
Series b. Pleurodira. 
Fams. Chelydidcc, Pelomedimdce, Carettochelydidce, Miolaniidce. 
Subord. III. Trionyciioidea. 
Fam. Trionycliidce. 
G. Baur, Zool. Anz. xi, pp. 417-424, 592-597, & 736-740, has notes 
on the osteology of Chelonians, and proposes a revised nomenclature for 
the epidermal shields and bony plates of the shell. 
G. A. Boulenger, Ann. N. H. (6) i, p. 452, fig., remarks on the sup- 
posed presence of ossa transversa in a Chelonian (j Hydraspis hilairii). 
The error is corrected ; op. cit. ii, p. 122. 
Dogiel, A. Ueber das Yerhalten der nervosen Elemente in der Retina 
der Ganoiden, Reptilien, Vogel und Saugetiere. Vorlaufige Mitthei- 
lung. Anat. Anz. iii, pp. 133-143, figs. 
Chelonia , pp. 137 & 138. 
Mitsukurt, K. The Ectoblastic Origin of the Wolffian Duct in 
Chelonia. (Preliminary Notice.) Zool. Anz. xi, p. 111. 
E. H. Barbour, Am. J. Sci. (3) xxxvi, pp. 227-230, pi. v, has bio- 
logical notes on a young Tortoise (Chrysemys pictci) with two heads. 
TRION YCHOIDEA. 
Trionyx , Geoffr . : notes on the American species, by Baur, Am. Nat. 
xxii, pp. 1121 & 1122. 
Platypelis agassizii , n. n. for P.ferox , Ag., nec Schn. ; id. t. c. p. 1122. 
PLEURODIRA. 
G. Baur, Zool. Anz. xi, pp. 419-421, proposes the following classifica- 
tion of tho typical Pleurodira : — 
1. Mesoplastralia. 
Fams. Pleurosternidce, S ter nothcer idee, Pelomedusidce. 
2. Amesoplastralia. 
Fams. Pledochelydidcc, Chelydidce. 
