TITLES. 
Kept. 7 
Guntiier, A. Biologia Centrali-Americana. Reptilia. Pp. 81-112 
and pis. xxxi-xl, were issued in 1893; pp. 113-128 and pi. xli, in 
Feb. 1894. [In progress.] 
. Second Report ou the Reptiles, Batrachians, and Fishes trans- 
mitted by Mr. H. H. Johnston, C.B., from British Central Africa. 
P. Zool. Soc. London, 1893, pp. 616-628, pis. liii-lvii (1894). 
. Descriptions of the Reptiles and Fishes collected by Mr. E. 
Coode-Hore on Lake Tanganyika. T.c. pp. 628-632, pi. lviii. 
IIaacice, W. Dio Schopfung der Tiorwelt. Leipzig and Vienna : 
1893, 8vo. 
Hay, O. P. The Batrachians and Reptiles of the State of Indiana. 
Indianopolis : 1893, 8vo, 204 pp., 3 pis. 
Heidenhain, M. Ueber das Vorkommen you Intercellularbriicken 
zwischen glatten Muskelzellen uud Epithelzellen des ausseren 
Keimblattes und deren theoretische Bedcutung. Anat. Anz. viii, 
1893, pp. 404-410, fig. 
. Die Hautdriisen der Amphibien. SB. Ges. Wurzburg, 1893, 
pp. 52-64. 
Hertwig, O. Ueber den Werth der ersten Furchungszellen fur die 
Organbildung des Embryo. Experimented Studien am Frosch- und 
Tritonei. Arch. mikr. Anat. xlii, 1893, pp. 662-807, pis. xxxix-xliv. 
Hill, J. P. Note on an Abnormal Connection of the Renal-portals in 
a young male Frog ( Limnodynastes peronii). P. Linn. Soc. N. S. 
Wales (2) viii, 1894, pp. 222-224, fig. 
. Note on the Presence of Vestigial Muellerian Ducts in a full- 
grown male Lizard ( Amphibolurus muricatus). T. c. pp. 325 
& 326. 
Hochstetter, F. Ueber die Entwicklung der Abdominalvene bei 
Salamandra maculosa. Morphol. Jahrb. xxi, 1894, pp. 19-27, pi. i. 
Holden, E. S. The Suicide of Rattlesnakes. Nature, xlviii, 1893, 
p. 342. 
Houssay, F. Etudes d’embryologie sur les Vertebres. Developpe- 
ment et Morpliologie du Parablaste et de lAppareil circulatoire. 
Arch. Zool. exp. (3) i, 1893, pp. 1-94, pis. i-v. 
Howes, G. B. Notes on Variation and Development of the Vertebral 
and Limb-Skeleton of the Amphibia. P. Zool. Soc. London, 1893, 
pp. 268-278, figg. 
— — . On the Coracoid of the Terrestrial Vertebrata. T. c. pp. 585-592, 
figg- 
Hubbard, H. G. The Florida Land Tortoise, Gopher, Gopherus 
jiolyphemus. Science, xxii, 1893, pp. 57 & 58. 
