1136 The American Naturalist. [December 
C. g. costatus Cope. When the color pattern consists of rows of 
oblong black spots on a dark ground the form C. g. semifasciatus Cope 
is produced. 
We have the following results: 1. A longitudinally striped pattern 
passes into a transversely banded form, etc. 2. This series of changes 
is common to both species, C. gularis and C. tessellatus. 3. This 
series and some of the other variations are found in the Lacerta 
muralis of Southern Europe, as described by Eimer. 4. This kind of 
variation is not promiscuous or multifarious, but in series. —E. D. Cope. 
A Rorqual on the New Jersey Coast.—A young specimen 
of Balænoptera came ashore at Ocean City, Cape May county, N. J., 
recently, and was secured for the Academy of Natural Sciences of 
Philadelphia by the efforts of Prof. A. Heilprin, Dr. S. G. Dixon, 
and Mr. J. I. Ives. It had been dead for a considerable time, and 
had lost its whalebone, Its long maceration rendered it possible to 
procure the skeleton in very good condition. It measured in the flesh 
66 feet 11 inches in length ; head to angle of mouth on curve, 16 feet 
ro inches. The entire surface was of a purplish slate color, mottled 
with large blotches of a lighter tint ; under surface of flippers, white. 
The characters of the skeleton are those of the B, musculus, with certain 
important exceptions, in which it resembles the Z. sibbaldii. ‘These — 
are the enclosure of the vertebrarterial canal in the axis vertebra 
only; the large size, and the color. A full description of it will be pub- 
lished in the Proceedings of the Philadelphia Academy.—E. D. Cope. 
New Mammals.—In North American Fauna, No. 5, Dr. C. 
Hart Merriam describes the vertebrate fauna of Southern Idaho. 
First is a general review of the region and its faunal provinces, and 
then follow annotated lists of species. Of mammals sixty-seven species 
are recognized, the following being new: Sorex idahoénsis, S. dobsoni, 
S. vagrans similis, Onchomys leucogaster brevicaudus, Hesperomys crini- 
tus, Arvicola macropus, A. mordax, A. nanus, Phenacomys orophilus, 
Lvotomys idahoénsis, Thomomys clusius fuscus, Lepus idahoénsis. The 
only new bird found was Megascops flammeolus idahoénsis, which is 
given a colored plate. The reptiles and Batrachia are catalogued by 
Dr, L. Stejneger, but embrace no novelties. In the same number Dr. 
Merriam also describes Microdipodopus [n. g.] megacephalus from 
Nevada, and Evotomys gapperi brevicaudus from the Black Hills. 
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