180 
ZOOLOGICAL LITERATURE. 
Ma/ja capensia described by.Kner, 1. c, p. 419. 
Chimera ajims, sp. n., Oapello, Jorn. Sc. matb. phys. e nat, Lisb. iv. p. 
pi. 3. fig, 1, Portugal. 
CYCLOSTOMATA. 
Petromyzoti marinua. Some physiological observations by Bert^ Ann. Sc. 
Nat. 1867, vii. pp. 371-873. 
Petromyzon, sp. P, known from the Ammocoetea-iovm only, from New Zea- 
land, described by Kner, Novara, Fisch. p. 421. 
LEPTOCARDII. 
Amphioxua lanceolatus. Dr. Kowalevsky’s researches into its development 
(seeZool. liecord, iii. p. 160) have appeared in full in M^m. Ac. Sc. St. P<§- 
tersb. 1867, xi. no. 4, with three plates. The eggs are expelled by the open- 
ing of the mouth. 
M. Bert has made researches into the minute anatomy of this creature. 
He denies that the dorsal cord is formed of cells or disks; its structure 
consists of lamellae composed of semisolid amorphous material. Amphioxua 
is a definitive form, the author having witnessed the ejection of semen. Lost 
1 parts are not regenerated. M. Bert has also observed the efiects of several 
chemicals on the living animal. Compt. Bend. 1867, Aug. 26, pp. 364-867 
'yAnn. & Mag. Nat. Hist. xx. pp. 302-304. 
