4 Pisces. 
PISCES. 
the relationships of the various groups of fishes to one another. Amphi- 
oxus being left out, a scheme of the phylogeny of the fishes is given, and 
the following classification of the Ichthyopsida is proposed : — 
The development of lungs being the justification for the group Pneum- 
ichthyidce. 
Patten, W. On the origin of Vertebrates from Arachnids. Q. J. Micr. 
Sci. xxxi, pp. 317-378, figs. 
Deals, among other points, with what the author takes to be Arachnid 
features in Pterichthys and allies. 
Remarks by A. S. Woodward, Ann. N. H. (6) vi, pp. 314-316. 
Cope, E. D. The Homologies of the Fins of Fishes. Am. Nat. xxiv, 
pp. 401-423, figs., pis. xiv-xviii. 
Schneider, A. Studien zur Systematik und zur vergleichenden 
Anatomie, Entwicklungsgeschichte und Histologie der Wirbelthiere. 
(Fragment.) Zool. Beitr. ii, pp. 268-270, pis. xxiii-xxvii. 
Five plates and their explanation, dealing with Fishes, published after 
the author’s death. 
Klaatsch, H. Zur Morphologic der Fischschuppen und zur Geschichto 
der Hartsubstanzgewebe. Morph. JB. xvi, pp. 97-202 & 209-258, 
pis. vi-viii. 
On tho histological structure of the scales of Fishes, rocont and fossil, 
with views on the phylogenesis of the various types. 
Howes, G. B. On the Intestinal Canal of the Ichthyopsida, with 
especial reference to its Arterial Supply, and the Appendix Digiti- 
formis. J. L. S. xxiii, pp. 381-410, pis. i & ii. 
ROse, C. Beitriige zur vergleichenden Anatomie des Herzens der Wir- 
belthiere. Morph. JB. xvi, pp. 27-96, pis. iv & v. 
Ciievrel, R. Sur l’anatomie du Systeme Nerveux grand sympathique 
des Elasmobranches et des Poissons osseux. Arch. Z. exper. v bis, 
No. 5, 196 pp., 3 pis. 
Laguesse, E. Recherches sur le D6veloppement de la Rate chez les 
Poissons. J. de l’Anat. Phys. xxvi, pp. 345-406 & 425-495, pis. x-xiii. 
Liebreich, O. Betrachtungen fiber die physikalische Eigenschaft der 
Schwimmblase der Fische. Arch. Anat. Phys. 1890, Phys., Suppl., 
pp. 142-161. 
. Ueber die physikalische Funktion der Schwimmblase bei Fischen. 
Op. cit. Phys. pp. 360-363. 
Ganodichthyidce 
Marsipobranchii. 
Ganoidei. 
Teleostei. 
Selachii 
Amphibia. 
