24 Pisces. 
PISCES. 
Vignal, — . Sur les lobes accessoires de la moelle du Mole ( Orthagorisc-us 
mold). CR. Soc. Biol. (8) iii, pp. 144-146, figs. 
Monacanthus hrowni , Rich., pi. cxxiv, and hipprocrcpis , Q. & G., pi. cxxv, 
described and figured by McCoy, Prodr. Zool. Yict. M. mosaicus } n. sp., 
Ramsay & Douglas-Ogilby, P. Linn. Soc. N. S. W. (2) i, p. 5, Port 
Jackson. 
Diodon foleyi, n. sp. (foss.), Lydekker, Pal. Ind. (10) iii. p. 257, 
pi. xxxv, fig. 10, Eocene of Ramri I., Arakan coast. 
Orthagoriscus mola. On a specimen captured at Hawke’s Bay, New 
Zealand ; A. Hamilton, Tr. N. Z. Inst, xviii, p. 135. 
CYCLOSTOMATA. 
Ransom, W. B., & Thompson, D’Arcy W. On the Spinal and Visceral 
Nerves of Cyclostomata. Zool. Anz. ix, pp. 421-426. 
Shipley, A. E. On the Development of the Nervous System in Petro- 
myzon fluviatilis. P. Cambr. Phil. Soc. v, p. 374. 
. On the Formation of the Mesoblast, and the Persistence of the 
Blastopore in the Lamprey. [Abstract.] P. R. Soc. xxxix, 
pp. 244-248. 
Nansen, F. Preliminary Communication on some Investigations upon 
the Histological Structure of the Central Nervous System in the 
Ascidia and in Myxine glutinosa. Aarsberetn. Bergen Mus. 1885, 
pp. 55-78. Translation by W. S. Dallas, Ann. N. H. (5) xviii, 
pp. 209-226. 
Cunningham, J. T. On the Structure and Development of the Repro- 
ductive Elements in Myxine glutinosa , L. Q. J. Micr. Sci. xlii, 
pp. 49-76, pis. vi & vii. 
Cleland, — . On the Structure of the Tail in Myxine (Glutinous Hag). 
Rep. Fish.-Board Scotl. 1885, p. 211 ; and Rep. Brit. Ass. 1885, 
p. 1069. 
“ DIPLORRHINA.” 
This division is established for a new (fossil) type, Mycterops ordinatus , 
n. g. & sp., from the Coal Measures of Pennsylvania. The Mycteropidce 
are regarded as occupying a position between the AntiarcTia ( Tunicata ) 
and Marsipobranchn on the one hand, and the Fishes on the other ; and 
as descendants of the Pterichthydidce, and ancestors of the Placoganoidei. 
Am. Nat. xx, pp. 1027-1031. 
INCERT^l SEDIS. 
Edestus davisii ) n. sp., for a remarkable Ichthyodorulite from the Car- 
boniferous series, Gascoyne, W. Australia ; H. Woodward, Geol. Mag. (3) 
iii, p. 1, pi. i. Remarks by Trautschold, Bull. Mosc. 1885, pp. 94-99. 
