CliONDROPTERYGII GANOIDEf. 
Pisces 9 
Alocopodon, n. g. ( Myliobatidai ), for A. sericeus, n. sp. (foss.) ; Cope, 
P. Am. Phil. Soc. xxiii, p. 2, Cretaceous, Prov. Pernambuco. 
Mylacodus variabilis, n. sp. (foss.), Davis, Geol. Mag. (3) iii, p. 154, 
Carboniferous, Derbyshire. 
Ckaracodus minimus , n. sp. (foss.), id. t. c. p. 155, Carboniferous, 
Derbyshire. 
j Rhymodus convexus, n. sp. (foss.), id. t. c. p. 155, Carboniferous, 
Derbyshire. 
HOLOCEPHALA. 
Parker, T. J. On the Claspers of Callorhynchus. Nature, xxxix, 
p. 635. 
Callorhynchus antarcticus, Lac., described and figured by McCoy, 
Prodr. Zool. Viet., pi. cxii. 
GANOIDEI. 
Orr, H. Beitrag zur Phylogenie der Ganoiden. Inaugural-Disserta- 
tion. Jena: 1885, 8vo, 37 pp. 
Schneider, A. Ueber die Plossen der Dipnoi und die Systematik von 
Lepidosiren und Protopterus . Zool. Anz. ix, pp. 521-524. 
A comparison of the fins in the genera and species of Dipnoi. The 
genus Protopterus is regarded as valid, and P. amphibius , Peters, as speci- 
fically distinct from P. annectens. 
Fulliquet, G. Sur la structure du cerveau du Protopterus annectens. 
Arch. Sci. nat. (3) xv, pp. 94-96, and Rec. Z. Suisse, iii, pp. 1-130. 
Beddard, F. E. Note on the Ovarian Ovum in the Dipnoi. Zool. Anz. ix, 
pp. 635-637. 
Lepidosiren ( Protopterus ) and Ceratodus. 
. Observations on the Ovarian Ovum of Lepidosiren ( Protopterus ). 
P. Z. S. 1886, pp. 272-292, pis. xxviii & xxix ; also Zool. Anz. ix, 
pp. 373-375. 
Macalltjm, A. B. The Alimentary Canal and Pancreas of Acipenser, 
Amia , and Lepidosteus. J. Anat. Phys. xx, pp. 604-636, pi. xx ; 
abstr. in P. Canad. Inst. (3) iii, pp. 271-274. 
Wilder, B. G. Experiments antagonizing the view that the serrulae 
(serrated appendages) of Amia are accessory respiratory organs. 
P. Am. Ass. xxxiv, pp. 313-315. 
Titanichthys , Dinichthys , and Diplognathus (foss.) : notes by New- 
berry, Tr. N. Y. Ac. v, pp. 25-28. T. agassizii, n. sp., id. t. c., Devonian 
of Ohio. Dinichthys possesses a series of sclerotic plates round the eye, 
like those of many Reptiles. 
Coccosteus obtusus , Koen. (foss.). Note by A. v. Koenen, Verh. Ver- 
Rheinl. xliii, pp. 55-57, figs. 
Pteraspis , Cyathaspis, and Scaphaspis : whether the shields referred to 
these three genera belong to different parts of the body of one and the 
1886. [vol. xxtii.] c 4 
