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MUSEUM OF COMPARATIVE ZOOLOGY. 45 
Memorrs: — 
Vol. XXXVI. 
The Plagiostomia. (Sharks, skates, and rays). By Samuel Garman. 
pp. 528. 77 Plates. September, 1913. 
Vol. XL. 
No. 6. Brewster’s warbler (Helminthophila leucobronchialis) a hybrid 
between the golden-winged warbler (Helminthophila chrysoptera) and the 
blue-winged warbler (Helminthophila pinus). By Walter Faxon. pp. 8. 
August, 1913. 
No. 7. Anew Mylodon. By Glover M. Allen. pp. 30. 4 Plates. Sep- 
tember, 1913. 
No. 8. Notes on the crayfishes in the United States National Museum and 
the Museum of Comparative Zoélogy with descriptions of new species 
and subspecies to which is appended a catalogue of the known species 
and subspecies. By Walter Faxon. pp. 84. 13 Plates. July, 1914. 
Vol. XLIV. 
No. 2. A contribution to the zodgeography of the West Indies, with 
especial reference to amphibians and reptiles. By Thomas Barbour. 
pp. 155. 1 Plate. March, 1914. 
Vol. XLVI. 
No. 1. Hawaiian and other Pacific Echini. The Clypeastridae, Arach- 
noididae, Laganidae, Fibulariidae, and Scutellidae. By Hubert Lyman 
Clark. pp. 80. 22 Plates. June, 1914. 
REPoRT: — 
1912-1913. pp. 44. 2 Plates. December, 1913. 
ZOOLOGICAL LABORATORY. 
CoNTRIBUTIONS : — 
238. Parker, G. H., and Strasier, E. M.— On certain distinctions 
between taste and smell. Amer. journ. physiol., August, 
1913, 32, p. 230-240. 
239. Parker, G. H., and BuLtarp, C.— On the size of litters and 
the number of nipplesin swine. Proc. Amer. acad. arts & sci., 
September, 1913, 49, p. 397-426. 
240. Kurtcuin, H. L.— Studies on the peripheral nervous system 
of Amphioxus. Proc. Amer. acad. arts & sci., October, 1913, 
49, p. 569-626, 8 pls. 
241. Sparetu, R. A.— The mechanism of the contraction in the 
melanophores of fishes. Anat. anzeiger, 15 September, 1913, 
/ 44, p. 520-524. 
242. Spartu, R. A.— The physiology of the chromatophores of 
fishes. Journ. exper. zodl., November, .1913, 15, p. 527-585, 
4 pls. 
243. Ranp, H. W., and Boypgen, E. A.— Inequality of the two eyes 
in regenerating planarians. Zool. jahrb. Allg. zool. u.-physiol., 
December, 1913, 34, p. 69-80. 
