CYCLOSTOMT, LEPTOCAKDII. 
Pisces 43 
CYCLOSTOMI. 
The Australian Marsipobranclis are monographed by J. Douglas- 
Ogilby, P. Linn. Soc. N. S. Wales, xxi, pp. 388-426. 
On the cartilaginous skeleton of Ammoccetes branchial is ; J. Schaffer, 
Zeitschr. wiss. Zool. Ixi, pp. 606-659, pis. xxvii-xxix. 
E. v. Ebner investigates the minute structure of the notochord in 
Cyclostomes ; Sll. Ak. Wien, civ, iii, pp. 7-16 & 124-139, figg. 
On the enteron of Pctromyzon dorsatus , Wilder ; Agnes M. Claypole, 
P. Amer. Micr. Soc. xvi, 1895, pp. 125-164, pis. iii-x. 
On a pancreas like organ in Bdellostonia ; O. Maas, Anat. Anz. xii, 
pp. 570-573, figg. 
On the so-called suprarenal bodies in Cyclostomes; W. E. Collinge & 
S. Vincent, t. c. pp. 232-241, figg. 
On the blood-corpuscules of Lampreys ; Giglio Tos, Mem. Acc. Torino 
(2) xlvi, pp. 219-252, 1 pi. 
On some points in the development of Bdellostoma, stouti , Lock.; G. C. 
Price, Yerh. Anat. Ges. x, pp. 81-86. 
Lampetra wilderi , n. sp., Gage in Jordan & E verm an N, Fish. N. Am. i, 
p. 13, Western New York to Iowa. 
lid din stoma biscJioffii, Selin. : on the eggs ; L. Plate, SB. Ges. uaturf. 
France, 1896, p. 16, figg. 
Myxine australis , Jen., figured by Good & Bean, Ocean. Ichthyol. pi. i, 
fig. 2. 
T. Gill, Science (2) iv, p. 10, proposes to isolate Palceospondylus as an 
order or even subclass of Vertebrates, under the name of Cyclia 
which is only provisionally retained in the class of Marsipobranclis. 
LEPTOCARDII. 
W. H. Gaskell, P. Cambridge Soc. ix, pp. 19-47, and Nature, liv, 
pp. 551-565, figg., in dealing with the origin of Vertebrates, 
compares the structure of Ammoccetes with that of Limulus. 
On the structure of the notochord of B ranch iostoma lanceolatum ; E. v. 
Eunek, SB. Ak. Wien, civ, iii, pp. 199-226, 4 pis. 
On the morphology of the genital glands of Branchiostoma lanceolatum ; 
It. Li sgros, Congr. Zool. Leyden, pp. 487-500, pi. iii. 
On the anatomy of the nervous system of Branchiostoma lanceolatum ; 
S. Sigorski, Trudui Kazan. Univ. xxviii, 1885, No. 3, 16 pp., 1 pi. 
On the number of cells in larvae from isolated blastomeres of Amphi- 
oxus ; T. H. Morgan, Arch. Entwickmech. iii, pp. 269-294, pi. xvii. 
Asymmefron caudatum , n. sp., Willey, Quart. J. Micr. Sci. xxxix, 
p. 219, pi. xiii, Louisiade Archipelago. 
1890. [vol. xxxiu.] 
c 12 
