PISCES. 
i 
\ A. W. E. O’Shaughnessy. 
Special parts of the anatomy and development of fishes have received 
progressive attention and elucidation in the year 1875, in the various 
memoirs by Pouchet, His, Grerbe, Tomes, and others, cited below under 
the head of Anatomy and Physiology, or under the different groups to 
which they apply. The year has, however, been chiefiy rich in descrip- 
tions of collections illustrating special faunae, or enlarging our know- 
ledge of separate families ; foremost in this line are Dr. Gunther’s 4th 
part of the “ Fische der Siidsee,” Dr. Steindachner’s contributions to the 
Ichthyology of S. America, and Dr. Liitken’s monograph of fresh-water 
fishes from the Rio das Velhas. The two new parts of the “ Atlas 
Ichthyologique,” furnishing plates and a portion of the letterpress of the 
Percidm, form also a most important feature in the Ichthyology of the 
year. 
, Anatomy and Physiology. 
Andre. J. Sur la preparation du micropyle dans la coque des oeufs 
de Truite. J. de I’Anat. Phys. 1875, pp. 197-202. 
Balfour, F. M. On the development of the Spinal Nerves in Elas- 
mobranch Fishes. P. R. Soc. xxiv. pp. 135 & 136 (Abstract). 
. On the development of Elasmobrauch Fishes. Q. J. Micr. Sci. 
1874. 
Bert, — . Influence des hautes pressions sur les poissons. M6m. Soc. 
Biol. V. p. 160. 
Engstrom, — . Om Fj aliens byggnad hos Osteopterygii jemte nagra 
undersokningar ofver Sidoliniens Fjall hos Skandinaviens Fiske. 
Lund : 1874. 
A dissertation on the structure of Acanthopterygian scales and of those 
of the lateral line. 
Furbringar, P. Untersuchungen zur vergleichenden Anatomie der 
Muskulatur des Kopfskelets der Cyclostomen. Jen. Z. Nat. ix. 
pp. 1-93, figs. 1-33. 
