"^'iSi!^,i:t" ^MMm in the Uni.

80
REPTILIA.
of the species could be worked out critically, the author s materials
being insufficient for that purpose. However, his list of
species may be considered to be complete to the year 1867
(incl.). The memoir is concluded with a sketch of the geographical
distribution of these Amphibians. They appear to indicate
the following divisions :—
I. Eastern Hemisphere, with 28 species.
A. Circummediterranean District, with 19 species.
1. European Province, with 15 species.
2. African Province, with 3 species.
3. Asiatic Province, with 5 species.
B. Asiatic District, with 9 species.
1. Western Siberia, with 1 species.
2. Eastern Siberia, with 2 species.
3. Japan, China, Siam, with 6 species.
n. Western Hemisphere, with 57 species.
A. Pacific District, with 25 species.
1. Northern Province, with 15 species.
2. Southern Province (from Mexico southwards), with 10 species.
B. Atlantic District, with 32 species.
1. Province West of Mississippi, with 13 species.
2. Province East of Mississippi, with 28 species.
With regard to the distribution of the genera, nine are peculiar
to the Eastern, seven to the Western Hemisphere, whilst three
are common to both.
Mr. St. G. MIVART has published a memoir on the axial
skeleton of the Urodela. Proc. Zool. Soc. 1870, pp. 260-278,
with numerous woodcuts.
Triton. Dr. Strauch (I. c.) describes T. karelinii, sp. n., from North-eastern
Persia, p. 42, tab. 1. fig. 1; T. longipes, sp. n., from Astrabad (Persia), p. 44,
fig. 2; and figures T. ophryticus (Berth.), fig. 3, and T. cristatus, fig. 4.
Salamandrella keyserlingii, g. et sp. n., Dybowski, Verh. z.-b. Ges. Wien,
1870, p. 237, taf. 1 , = Isodactylium schrenckii (g. et sp. n.), Strauch, I. c. p. 66,
taf. 2. fig. 1 (skull) ; distinguished from Ellipsoylossa by having four toes
only, from Eastern Siberia. A second species from Kamtschatka is Isodactylium
wosnessenskyi, sp. n., Strauch, I. c. p. 58, tab. 2. fig. 2.
Ranodon sibiricus (Kessler) = R. kessleri (Ballion) figured by Strauch, I. c.
p. 66, taf. 2. fig. 3.
Ensatina eschscholtzii (Gray) is different from Triton ensatus (Eschsch.),
which is the type of a new genus, Dicamptodon, Strauch, I. c. p. 68.
Plethodonfiavipunctatus, sp. n., Strauch, I. c. p. 71, California.
Spelerpes. Cirri dependent from the upper lip, near the nostril, are sometimes
observed in not fully developed examples (Sp. cirrigera, Green). Cope,
Amer. Nat. 1870, iv. p. 401.
Siredon. A. Dumeril has bred albinos; none of the examples which
underwent a metamorphosis are sexually mature. Bull. Acclim. 1870,
pp. 266-270; or Compt. Rend. 1870, lxx. pp. 782-785.—A specimen which
changed into the Amblystoma-steite figured by Tegetmeier, P.Z. S. 1870, p. 160.