22 Puces. 
PISCES. 
[Day, F.] On the Hybridisation of Salmonidce at Howietoun. Rep. ^ 
Brit. Ass. 1885, pp. 1059-1063. 
On abnormal embryos of Trout and Salmon ; Garman & Denton, 
Science Observer, v, pp. 1—7, figs. 
Ebner, Y. V. Ueber die Schleimabsonderung an der Oberhaut der 
Forelleuembryonen. Auz. Ak. Wien, xxiii, pp. 57 & 58. 
Bab forth, D. Biologische Untersuchungen fiber die Bachforelle. Arch, 
mikr. Anat. xxvii, pp. 128-179, pis. vii & vui. 1 
On sterility in the River Trout. The sterility is only a temporary 
one, but can extend over two spawning seasons. Only such Trout as 
live under natural circumstances are apt to reproduction ; such as are 
enclosed in ponds are sterile. 
On the embryology of Salmo fario ; A. E. Golubeff, Tr. St. Petersb. 
Nat. Soc. xvi, pp. 74-78. On a malformed head; v. Krauss, JH. Yer. 
Wiirtt. xlii, p. 345. 
Cope, Am. Nat. xx, p. 735, records the occurrence of a species of Salmo , 
perhaps S. purpuratus , in streams of the Sierra Madre, Mexico, at an 
elevation of between 7000 and 8000 feet, in the southern part of the 
State o£ Chihuahua, a locality far south of any which has hitherto yielded 
Salmonidce. 
Cunningham, J. T. On the Mode of Attachment of the Ovum of 
Osmerus eperlanus. P. Z. S. 1886, pp. 292-295, pi. xxx. 
Hyodontimi. 
Chiromy situs , n. g. Dorsal fin small, above the anal, which is moderate. 
Pectoral with several superior rays thickened and robust. Caudal fin 
furcate. Yentrals small. No ventral or dorsal scuta. Scales much 
attenuated. No basilar interneural or haunals. Perhaps belongs to the 
Chirocentridce. C. mdvisoni, n. sp. (foss.), Cope, P. Am. Phil. Soc. xxiii, 
p. 4, near Bahia. 
Clupeid^e. 
Clupea. J. C. Ewart having examined numerous samples of the White- 
bait sent to the London market from the middle of January to the 
middle of August, 1885, has convinced himself that the nature of White- 
bait varies considerably ; sometimes it consists almost entirely of Sprats, 
while at other times it consists almost entirely of Herring : P. Phys. Soc. 
Edinb. 1885-86, pp 78-81 ; also Ewart & Matthews, Rep. Fish.-Board 
Scotl. 1885, pp. 98-100. — C. harengus : on the hatching of Herring ova 
in deep water; Ewart, P. Phys. Soc. Edinb. 1885-86, pp. 47-54. Are 
Herring ova likely to develop normally on the deep off-shore fishing 
banks? id. Rep. Fish.-Board Scotl. 1885, pp. 43-46. On the develop- 
ment of the Herring (pt. ii) ; G. Brook, Rep. Fish.-Board Scotl. 1885, 
pp. 31-43, pis. i & ii. Report on the Herring fishery of Loch Fyne and 
the adjacent districts during 1885 ; id. t . c. pp. 47-61. Report on the 
food of the Herring ; Brook & Calderwood, t. c. pp. 102-128. Report as 
