ELASMOBRAN CHI I. 
Pisces 41 
A. N. Sewertzoff, Bull. Soc. Moscou (2) xii, pp. 393-445, pis. i-iv, 
continues his contribution to Selachian embryology, dealing with the 
metamery of the head of Torpedo. 
C. K. Hoffmann, Morphol. Jahrb. xxvii, pp. 325-414, figg., pis. xiv-xviii, 
continues his embryological investigations on Selachians, dealing with 
the dorsal nerve-roots of the head-somite. 
H. Braus, Morphol. Jahrb. xxvii, pp. 415-496, 501-628, figg., pis. xix-xxv, 
deals with the development of the musculature and peripheral nervous 
system in Selachians. 
A. Kohn, Arch. mikr. Anat. liii, pp. 281-311, pi. xv, writes on the supra¬ 
renal and interrenal bodies of Selachians. 
J. Mayr, Anat. Hefte i, viii, 1897, pp. 75-151, figg., pis. xi-xviii, investi¬ 
gates the development of the pancreas in Selachians. 
E. P. Allis, Anat. Anz. xvi, pp. 605-607, fig., remarks on an abnormal 
Musculus obliquus superior in Carcharias. 
B. Rawitz, Arch. mikr. Anat. liv, pp. 481-513, pi. xxvi, writes on the 
blood-corpuscles of Scyllium catulus. 
A. Schaper, Festschrift C. v. Kupffer, pp. 1-10, pis. i-iii, writes on the 
nervous elements of the retina in Selachians. 
G. Forssell, Zeitschr. wiss. Zool. lxv, pp. 725-744, pi. xxxiv, has a 
contribution to our knowledge of the anatomy of the Lorenzinian 
ampullae in the skin of Acanthias vulgaris. 
L. Johann, op. cit. lxvi, pp. 136-160, figg., pis. x & xi, writes on peculiar 
epithelial structures (luminous organs) in Spinax niger. 
A. Romano, Monit. Zool. ital. x, Suppl. pp. iii-xxiii, pis. vi & vii, writes on 
the electric nervous centres of Selachians. 
A. S. Woodward, P. Geol. Ass. xvi, pp. 1-14, pi. i, has notes on Selachian 
teeth from English Eocene formation. 
A. Bethe, Arch. ges. Physiol, lxxvi, pp. 471-496, figg., has remarks on the 
locomotion of the dog-fish of the genus Scyllium. 
Carcharias acutus , Rupp., pi. iv, figg. i & v, fig. 1, melanopterus , Q. & G., 
pi. iv, fig. 2, tceniatus , H. & E., pi. iv, fig. 3, acutidens , pi. v, fig. 2, 
menissorak, M. & H., pi. vii, fig. 1, and ehrenbergi , Klunz., pi. vii, 
fig. 2, figured in Hemprich & Ehrenberg’s Symbolse physicse; 
C. ( Aprionodon ) frequens , Dames (foss.). Remarks by Wittich, 
Notizbl. Yer. Erdk. Darmstadt (4) xix, 1898, p. 34. 
Galeocerdo tigrinus , M. & H., figured in Hemprich & Ehrenberg, op. cit. 
pi. v, fig. 3; G. medius , sp. n. (foss.), Wittich, t. c. p. 39, pi. i, fig. 4, 
Middle Oligocene, Mayence Basin. 
Hemipristis, sp. (foss.). On a tooth from the Middle Oligocene of the 
Mayence Basin: Wittich, op. cit. xviii, 1897, p. 47, pi. v, fig. 4. 
Sphyrna zygcena, L. {Zygcena erythrcea , H. & E.), figured in Hemprich & 
Ehrenberg’s Symbolse physicse, pi. vi, fig. 2. 
Mustelus Icevis, Risso (J/. mosis, H. & E.) figured in Hemprich & Ehren¬ 
berg, op. cit. pi. vii, fig. 3; M. dorsalis , Gill. Notes by J. F. Abbott, 
P. Ac. Philad. 1899, p. 327. 
Lamna nodosa , sp. n. (foss.), Ameghino, Sin. geol.-pal., Suppl., p. 11, 
Cretaceous of Patagonia. 
Oxyrhina leptodon , Ag. (foss.). Remarks by Wittich, t. c. p. 36. 
Carcharodon disauris , Ag. (foss.). On remains from the Eocene sands 
near Brussels: Delheid, Bull. Soc. malac. Belgique 1899, p. lxxiii. 
Odontaspis taurus , M. & H., figured, in Hemprich & Ehrenberg, op. cit. 
pi. vi, fig. 1; 0. abbatei , sp. n. (foss.), Priem, Bull. Soc. geol. France 
(3) xxvii, p. 246, pi. ii, fig. 26, Eocene of the Mokattam hills, Egypt. 
Notidanus atrox , sp. n. (foss.), Ameghino, Sin. geol.-pal., Suppl., p. 11, 
Cretaceous of Patagonia. 
Chlamydoselachus anguineus, Garm. Further notes by Garman, Mem. 
Mus. Harvard xxiv, p. 41. 
