52 Pisces 
v. pisces. 
[1904] 
GH ON D R OS T El, 
A. Nicolas, Arch. Biol, xx, pp. 425-460, pis. x-xii, has investigated the 
development of the pancreas, the liver, and the spleen in Acipenser 
ruthenus. 
E. Giacomini, Monit. Zool. ital. xv, pp. 19-32, writes on the suprarenal 
capsule of Acipenser sturio. 
Anna Drzewina, C.R. Soc. Biol, lvi, pp. 957-959, has a preliminary note 
on the granular cells of the kidney of Acipenser sturio. 
I G. Wagner, Science xix, p. 554, points out the presence of minute rostral 
I barbels and of small scales near the branchial region in Polyodon. 
A. D. Imms, P. Z. S. 1904, ii, pp. 22-35, pi. ii, writes on the gill-rakers of 
Polyodon . 
Acipenser idee. Definitions of the four recent genera, and list of the species, 
by L. S. Berg, Zool. Anz. xxvii, pp. 665-667. 
Acipenser , L. Notes on the specimens in the Vienna University Museum : 
Werner, Zool. Jahrb. Syst. xxi, pp. 266-269. A. sturio , L. Notes 
by N. M. Katuri<5, Rad. Jugoslav. Ak. cliv, 1903, p. i. 
Huso , g. n., for Acipenser huso, L., and dauricus , Georgi, L. S. Berg, t. c. 
p. 665. 
Nephrotus chorzoviensis, H. v. Meyer (foss.), redescribed and figured by 
Scupin, Zeitschr. Deutsch. geol. Ges. lv, p. 465, pis. xxi & xxii. 
DIPNEUSTI. 
On the morphology of the skeleton : K. Furbringer in Semon, Zool. 
Forsch. i, pp. 423-510, figg., pis. xxxvii-xli. 
K. FOrbringer, Anat. Anz. xxiv, pp. 405-408, remarks on some points in 
tlio anatomy of the head of the Dipneusti. 
R. Wiedersheim, Anat. Anz. xxiv, pp. 651 & 652, has further remarks on 
the larynx of the Dipneusti. 
E. Goppert, Festschr. Haeckel, pp. 115-132, figg., pi. vii, has investigated 
the larynx of Protopterus annectens. 
L. Neumayer in Semon, Zool. Forsch. i, pp. 377-422, figg., pi. xxxvi, deals 
with the development of the viscera of Neoceratodus forsten. 
H. Bluntschli in Semon, Zool. Forsch. i, pp. 333-356, figg., pi. xxxv, deals 
with the histology of the liver of Neoceratodus forstei'i. 
W. E. Kellicott, Biol. Bull, vi, pp. 320 & 321, has a note on the develop- 
ment of the vascular system of Neoceratodus forsteri. 
J. G. Kerr, Tr. R. Soc. Edinb. xli, pp. 119-127, 6 pis., writes on the early 
development of the motor nerve trunks and of the myotomes in 
Lepidosiren paradoxa. 
R. Bing & R. Burckhardt, Anat. Anz. xxv, pp. 588-599, figg., write on 
the central nervous system of Neoceratodus forsteri. 
Hosch, Arch. mikr. Anat. lxiv, pp. 99-110, pi. vi, has studied the structure 
of the eye in Protopterus annectens. 
Ceratodus priscus, sp. n. (foss.), E. Fraas, Ber. Oberrhein. geol. Ver. 
xxxvii, p. 30, fig., Trias, Black Forest ; G. africanus, sp. n. (foss.), 
Haug, C.R. Ac. Sci. cxxxviii, p. 1529, Cretaceous of Djoua, Sahara. 
CROSSOPTERYGII. 
)terus, Geoffr. On the specimens in the Vienna University Museum : 
Verner, Zool. Jahrb. Syst. xxi, p. 271. t 
