go Recent Literature. [ ZOE 
Description of Two New Species of Snakes from California. By 
LEONHARD STEJNEGER. Smithsonian Inst. Issued Feb. 5, 1890. 
Dr. Stejneger states that ‘“‘the genus Lichanura, the only North 
American genus of the family Borde, has hitherto not been recorded 
from the United States. It was, therefore, very interesting to receive 
* * a Lichanura from San Diego, and from Mr. C. R. Orcutt an- 
other from the same locality, as well as a third one collected in the 
Colorado Desert.”’ Ri 3. Ee 
Notes on the Occurrence of Gillichthys y-cauda at San Diego, Cal 
ifornia. By CHaRLES H. GILBERT. Smithsonian Inst. Issued 
March 4, 18go. 
Notes on Fishes collected at Cozumel, Yucatan. By TARLETON 
H. BEAN. Washington: Gov’t Printing Office, 1890. Dr. Bean 
enumerates sixty species, three of which are new species of Ladride. 
Myriopoda extranea Musei Hungarici, Tab. iv,v. Dr. E. Daday 
in Journal of Hung. Nat. Museum, describes two new genera of myr- 
iopods, 7rachydesmus and Paradoxosoma, and thirty-six new spe- 
cies, six of them, Sfirostreptus trisulcatus, Spirobolus ferrugineus, 
Spirobolus Hegedusii, Euryurus flavocarinatus, Lithobius carinipes 
and Lithobius Californicus, belonging to western North America. 
Transactions Am. Entom. Soc. xvii, 1. The Species of Hetero- 
cerus of Boreal America, by George H. Horn, with descriptions and 
figures of all the species (11) of which two, gemmatus from Washing- 
ton to Arizona and Nevada, and Schwarzi, from Texas, the Lake 
Superior region and near Alleghany, Pa., are new. Notes on the 
species of Ochthebius of Boreal America, by George H. Horn, gives 
full descriptions, with figure of thorax of 13 species. Notes on the 
species of Dendroctonus of Boreal America, by W. G. Dietz. De- 
scriptions and notes of six species, one of which, D. approximatus, is 
new. The author is unable to separate D. punctatus Lec. from D. 
rufipennis Kirby, and considers D. frontalis Zimm. and D. brevicor- 
nis Lec. identical. Notes on some North American Odonata, by 
- Philip P. Calvert, with notes, descriptions and figures of six species, 
three of which, Lepthemis gravida Hagen MS., from Florida and 
Texas, Leucorhinia Hageni Calvert from Pictou, Nova Scotia, and 
Leucorhinia proxima Hagen MS., from British America, Vancouver's 
Island,White Mountains and Mass., are described as new. Descrip- 
tions of some new species of Agvotis by John B. Smith. Describes 
