CHONDROPTERYGII. 
Pisces 53 
OSTRACOPHORI. 
R. H. Traquair, Pal. Soc. Mon. 1904, pp. 91-118, figg., pis. xix-xxvi, 
continues his monograph- of the Asterolepidce of Britain. 
O. Jaekel, Zeitschr. Deutsch. geol. Ges. lv, Yerh., pp. 41-60, figg., dis- 
cusses the structure and systematic position of the Asterolepidce , and 
gives a restoration of Aster olepis milleri, Ag. 
C. R. Eastman, Science (2) xix, pp. 703 & 704, remarks on the marginal 
and ridge scales in Cephalaspis and Drepanaspis. 
O. Jaekel, Zeitschr. Deutsch, geol. Ges. lv, Verh., pp. 84-93, figg., com- 
ments on Patten’s views on Tremataspis. 
Bothriolepis , Eichw. New observations by Patten, Biol. Bull, vii, p. 113, 
figg. ; B. coloradensis , sp. n., Eastman, Amer. J. Sci. (4) xviii, p. 254, 
fig., Upper Devonian of Colorado. 
CHONDROPTERYGII. 
HOLOCEPHALI. 
S. G arman, Bull. Mus. Harvard xli, pp. 245-272, 15 pis., writes on the 
classification of the living Chimseroids, and describes and figures the 
external characters and anatomy of Rliinochimcera pacifica, Mitsukuri, 
and Harriotta raleigliana , Goode & Bean. 
Synopsis of the recent genera and species by Werner, Zool. Jahrb. Syst. 
xxi, p. 275. 
B. Dean, Amer. Natural, xxxviii, pp. 486 & 487, and Biol. Bull, vii, 
pp. 105-112, writes on the egg-cases of Chimoeroids. 
Ghimcera colliei, Benn. On the egg and its capsule : B. Dean, C.R. Soc. 
Biol, lvii, p. 14 ; G. monstrosa , L. Notes by Werner, t. c. p. 273, figg. ; 
G. phantasma , not specifically separable : id. ibid. p. 275. G. phan- 
tasma , Jord. & Snyder. Note by Jordan & Snyder, P. U. S. Mus. 
xxvii, p. 223, fig. Described and figured by B. Dean, J. Coll. Tokyo 
xix, No. 3, p. 3, pi. 1, fig. 3 ; G. mitsukurii , sp. n., id. ibid. p. 6, pi. i, 
fig. 1, Japan; G. ( Bathyalopex ) mirabilis , sp. n., Collett, Forh. Selsk. 
Christian. 1904, No. 9, p. 5, Faroe Channel, 375-600 faths. 
Rhinochimcera pacifica, Mitsuk. Notes and figure by B. Dean, t. c. No. 4, 
2 pis. 
Rhyncliodus , Newb. (foss.). On the dentition : Eastman, Amer. Natural, 
xxxviii, p. 295. R. pertenius , sp. n., id. ibid. p. 297, fig., Devonian of 
Delaware County, New York. 
Menaspis , Ewald (foss.), is referred to the Holocephali by Bashford Dean, 
Science (2) xix, p. 253, and Amer. Geol. xxxiv, p. 49, pi. ii. 
PLAGIOSTOMI. 
A. Dohrn, Mt. Stat. Neapel xvii, pp. 1-294, pis. i-xvi, continues his 
studies on Selachian development, with the object of elucidating the 
question of the origin of Vertebrates. 
H. Helbino, Acta Ac. German, lxxxii, pp. 335-524, figg., pis. viii & ix, 
deals with the structure and systematic relationships of the 
Lcemargidce. 
R. C. Punnett, Biometrika iii, pp. 313-362, pi. i, has a paper on merism 
and sex in Spinax niger , as a contribution to the question of the 
origin of limbs. 
