ELASMOBRANCHII. 
Pisces 31 
EL ASMOBR AN CHII. 
C. Emery, Riv. ital. Pal. iii, pp. 30-33, figg., remarks on the morphology 
of the Acanthodidce. 
O. M. Reis, Abh. Senckenb. Ges. xx, pp. 57-156, 1 pi., deals with the 
structure and systematic position of the Pleuracanthidce. 
E. Foote, Anat. Anz. xiii, pp. 305-308, figg., writes on the extrabranch ial 
cartilages of Elasmobranchs. Remarks by Ride wood, t. c. pp. 499-501. 
E. W. Claypole, Tr. Amer. Micr. Soc. xviii, pp. 146-150, 1 pi., writes on 
the structure of the fossil Selachian teeth known as Mazodus. 
J. E. Peabody, Zool. Bull, i, pp. 163-178, figg., writes on the ampullae of 
Lorenzini of the Selachians. 
G. Schneider, Anat. Anz. xiii, pp. 393-401, figg., writes on the kidney and 
the abdominal pores of Squatina angelus. 
L. Neumayeii, Arch. mikr. Anat. xlviii, pp. 83-111, figg., investigates the 
histology of the Selachian retina. 
R. Burckhardt, Arch. Sci. Nat. (4) iv, pp. 480-483, remarks on the brain 
of Selachians. 
A. Romano, Monit. Zool. ital. viii, pp. 206-212, fig., writes on the fibres in 
the prooncophalon of Selachians. 
A. D. Morrill, J. Morphol. xiv, pp. 61-82, pis. vii & viii, has a paper on 
the innervation of the auditory epithelium of Mustelus canis . 
H. Neuville, Bull. Mus. Paris, 1897, pp. 55 & 56, remarks on a few points 
in the visceral anatomy of Centrophorus. 
W. A. Haswell, P. Linn. Soc. N. S. Wales, xxii, pp. 96-103, pis. iv & v, 
writes on the development of Cestracion philippi. 
A. Sewerzoff, Anat. Anz. xiii, pp. 409-425, figg., has a preliminary com- 
munication on the development of the skull in Acanthias. 
C. K. Hoffmann, Morphol. Jahrb. xxv, pp. 250-304, figg., pis. xiii & xiv, 
continues his embryological investigations on Selachians. 
W. His, Arch. Anat. 1897, pp. 1-64, writes on the development of the 
periblast in Selachians. 
Emily R. Gregory, Zool. Bull, i, pp. 123-129, writes on the origin of the 
Pronephric duct in Selachians. 
H. Virchow, SB. Ges. naturf. Berlin, 1897, pp. 49-59, 91-110, deals with 
various points in the gastrulation of Selachians. 
J. Ogneff, Arch. Physiol. 1897, pp. 270-306, pis. iv & v, writes on the 
development of the electric organ in Torpedo. 
H. Neuville, Bull. Mus. Paris, 1897, p. 87, remarks on the habits and 
bathymetrical distribution of the deep-sea Selachians at Setubal, 
Portugal. 
Isxirus oxyrkynchus , Raf. ( Lamna Spallanzani t, Bp.): on a specimen from 
Bergensfjord, Norway; Collett, Arch. Naturv. Christian, xix, No. 7, 
p. 6. 
Lamna cornubica , L. : recorded from the Isle of Man by Kermode, Zoolo- 
gist (4) i, p. 579; L. borealis , sp. n. (foss.), Priem, Bull. Soc. geol. 
France (3) xxv, p. 41, pi. i, fig. 9, Chalk of S. Sweden ; L. bassanii , 
sp. n. (foss.), De Alessandri, Mem. Mus. Milano, vi, No. 1, p. 38, 
pi. i, fig. 16, Miocene, Piotra da Cantoni, Italy. 
Oxyrhina hastalis , Ag. (foss.) : on remains from the Miocene of Alba, Italy ; 
De Alessandri, Atti Soc. Ital. xxxvi, p. 263, pi. — . 
Scyllium canicula, L.: on oviposition and development; Kopsch, Biol. 
Centralbl. xvii, p. 885, figg. 
Gyropleurodus ? On jaws from New South Wales indicating a new species; 
Douglas-Ogilby, P. Linn. Soc. N. S. Wales, xxii, p. 245. 
Heptranchias haswelli , sp. n., Douglas-Ogilby, P. Linn. Soc. N. S. Wales, 
xxii, p. 62, Loc. — ? 
