10 Pisces. 
V . PISCES. 
LOnnberg, E. Ichthyologische Notizeu. n. Bih. Svenska Ak. xviii 
(4), No. 2, 1893, 13 pp. 
Layoff, B. Ueber den Zusammenhang von Markrohr uud Chorda beim 
Amphioxus und ahnliche Verhiiltnisse bei Anneliden. Zeitschr. 
wiss. Zool. lvi, 1893, pp. 299-309, pi. xvii. 
. On the formation of the Germinal Layers in Vertebrates. 
Translation. Ann. Nat. Hist. (6) xi, 1893, pp. 360-377. 
Marshall, A. M. Vertebrate Embryology. A Text-book for 
Students and Practitioners. London : 1893, 8vo, xxiii, 640 pp., figg. 
Maurer, F. Zur Frage von den Beziehungen der Haare der Sauge- 
thiero zu den Hautsinuesorgano niedcrer Wirbelthiere. Morpliol. 
Jahrb. xx, 1893, pp. 429-448. 
Mayer, P. Ueber die ersten Stadien der Gefiisse bei den Selachiern. 
Anat. Anz. ix, 1893, pp. 185-192. 
Mazza, F. Eteromorfie di alcuni pesci marini. Atti Soc. Ligustica, iv, 
1*93, pp. 427-435. 
McLurea F. W. Notes on the Early Stages of Segmentation in 
Petromyzon marinus , L. ( arnericanus , Lo S.). Zool. Anz. xyi, 1893, 
pp. 367, 368, & 373-376. 
Meek, S. E. A Report upon the Fishes of Iowa, based upon Observa- 
tions and Collections made during 1889, 1890, & 1891. Bull. U. S. 
Fish Comm, x, 1892, pp. 217-248. 
Mitrophanow, P. Etude embryogenique sur les Selaciens. Arch. 
Zool. exp. (3) i, 1893, pp. 161-220, pis. ix-xiv. 
. Researches on the Development of Vertebrate Animals. 
(Russian text.) Trav. Soc. Varsovie, ii, 1892, pp. 1-251, pis. i-vii. 
Morgan, T. H. Experimental Studies on the Teleost Eggs. (Pre- 
liminary Communication.) Anat. Anz. viii, 1893, pp. 803-814. 
MObius, K. Ein eierhaltiges Nest des Seestichlings, Gasterosteus 
spinachia, L. SB. nat. Fr. 1893, p. 167. 
Nelson, T. H., & Clarke, W. E. Scorpcena dactyloptera on the 
Yorkshire Coast. Naturalist, 1893, p. 81. 
Noi£, J. Variation avec 1’habitat de la resistance des Poissons h, 
Tasphyxie dans Pair. C.R. Soc. Biol. (9) v, 1893, pp. 1049-1051. 
Ostroumoff, A. Studien zur Phylogenie der ausseren Genitalien bei 
Wirbelthieren. i. Theil. MT. Stat. Neapel, xi, 1893, pp. 46-55, 
pis. iii & iv. 
Parker, W. N. On the Anatomy and Physiology of Protopterus 
anncctens. Tr. Irish Ac. xxx, 1892, pp. 109-230, pis. vii-xvii. 
Perugia, A. Di alcuni Pesci raccolti in Sumatra dal Dott. Elio Modi- 
gliani. Ann. Mus. Genova (2) xiii,.1893, pp. 241-247. 
