TELEOSTOMI—CHONDROPTERYGII. 
Pisces 43 
J. G. Kerr, P. Z. S. 1901, ii, pp. 484-498, figg., pis. xxvii & xxviii, writes 
on the genito-urinary organs of Lepidosiren and Protopterus .—Also 
P. Cambridge Soc. xi, pp. 329-333. 
J. G. Kerr, Quart. J. Micr. Sci. xlvi, pp. 417-459, figg., pis. xxv-xxix, in¬ 
vestigates the development of the skin and its derivation in Lepi¬ 
dosiren paradoxa. 
Protopterus cethiopicus, Heck., figured by Moore, Tanganyika Problem, 
p. 152. 
OSTRACOPHORI. 
0. Jaekel, SB. Ges. naturf. Berlin 1902, pp. 103-115, pi. —, gives a 
restoration of Coccosteus decipiens, and considers the relations of the 
• Coccosteidce with other Fishes and the Stegocepkalia. 
W. Patten, Yerh. v. Int. Zool. Congr. pp. 180-192, figg., compares the 
structure of the head of the Ostracophori with that of Lirnulus and 
Trilobites. 
W. Patten, Amer. Natural, xxxvi, pp. 379-393, figg., also writes on the 
structure and classification of the Tremataspidce , and proposes a new 
class, named Peltacephala , to include the Pteraspidce , Tremataspidce , 
Pterichthyidce, and Gephalaspidce. 
L. Vaillant, CB. cxxxiv, pp. 1321 & 1322, remarks on the minute 
structure of the bony scales of Silurian Fishes from Colorado. 
Cephalaspis carteri , McCoy. On the corner of a head-shield from Corn¬ 
wall, A. S. Woodward, Tr. geol. Soc. Cornwall xii, p. 431. 
Asterolepis incisa , sp. n., A. S. Woodward, Bih. Svenska Ak. xxvi, iv, 
No. 10, p. 6, pi. —, figg. 11-13, Upper Devonian, East Greenland. 
Drepanaspis gemundenensis, Schliiter. Additional note by Traquair, 
Geol. Mag. (iv) ix, p. 289, figg. 
CHON DROPTE RY G1I. 
0. P. Hay, Tr. Amer. phil. Soc. (2) xx, pp. 63-75, writes on the chrono¬ 
logical distribution of the Chondropterygians or Elasmobranchs. 
HOLOCEPHALI. 
F. K. Studnicka, Bibliog. anat. xi, pp. 217-233, figg., has investigated 
the buccal epithelium of Chimcera monstrosa. 
Chimcera monstrosa , var. n. australis , Hector, Tr. N. Zealand Inst, xxxiv, 
p. 239, pi. xiv, fig. c, New Zealand. 
Ischyodus bohemicus , sp. n. (foss.), Fritsch & Bayer, Ceska Ak. Praze, 
4to, ii, p. 5, Cretaceous, Bohemia. 
PLAGIOSTOMI. 
A. Dohrn, Mt. Stat. Neapel xv, pp. 555-654, pis. xxiv-xxx, has further 
contributions to the consideration of the development of the occipital 
region and ganglia in Selachians. 
E. Ruge, Morphol. Jahrb. xxx, pp. 1—27, figg., pi. i, has investigated the 
development of the skeleton of the fore limb in Spinax niger. 
F. H. Edgeworth, J. Anat. Physiol, norm. path. (2) xvii, pp. 73-86, 
pis. iv-x, has a paper on the development of the head muscles in 
Scy Ilium canicula. 
