TITLES. 
Verm. 15 
238. [Masterman, A. T.] On the “ Notochord ” of Cephalodiwus. Zool. 
Anz. xxii, pp. 359-363. 
239. -. On the origin of the vertebrate notochord and pharyngeal 
clefts. Eep. Brit. Ass. Bristol 1898, pp. 914-916. 
240. Matthew, G. F. Preliminary notice of the Etcheminian fauna of 
Newfoundland. Bull. Soc. N. Brunswick, No. xviii, Vol. iv, pp. 189- 
197, 3 pis. 
241. -. A Palaeozoic Terrane beneath the Cambrian (Etcheminian). 
Ann. N. York Ac. xii-i, pp. 41-56. 
Arenicolites and Psammichnites. 
242. Matzdorff, C. Bericht fiber die wissenschaftlichen Leistungen in 
der Naturgeschichte der freilebenden Wiirmer wahrend des Jahres 
1892. Arch. Naturg. lx, Bd. 2, pp. 127-206, 1894. Issued July 1899. 
243. -. Jahresbericht fiber die Bryozoen fiir 1894, 1895 und 1896. 
Arch. Naturg. lx, 2, pp. 89-96. [Includes some references to 
“ Vermes.”] 
244. Maupas, E. La mue et l’enkystement chez les Nematodes. Arch. 
Zool. exp. (3) vii, pp. 563-628, pis. xvi-xviii. 
245. Mead, A. D. The cell origin of the prototrocli. Biol. Lectures, 
Wood’s Holl, 1898, Boston, 1899, pp. 113-138, 25 figg. 
246. *Megnin, P. Epidemies de Tenias chez les Faisans et les Perdrix. 
Bull. Acad. Med. (3) xl, pp. 159, 198. 
Of . Blanchard (38). 
247. -. Un Tenia du pigeon rainier (Pcdombus torquatus). Cinquante- 
naire Soc. Biol. Paris, pp. 279-281, text-figg. 
248. Mensch, P. Calvin. The relation of the ventral nerve cord and 
hypodermis in Procercea. Zool. Anz. xxii, pp. 164-167. 
249. Mesnil, F. Les genres Clymenides et Brcinchiomaldane et les stades 
post-larvaires des Arenicoles. Bull. Sci. France Belgique xxxii, 
pp. 317-328, 5 figg. 
250. -. La position systematique des Flabelligeriens St. Joseph 
(Chloremiens Quatrefages) et des Sternaspiens. Zool. Anz. xxii, 
pp. 81-85, 2 figg. 
251. - & Caullery, M. Les formes epitoques des Annelides et en 
particulier des Cirratuliens. P. Int. Congress Zool. Cambridge 1898, 
pp. 204-220, 8 text-figg. 
252. - & ——-. Demonstrations of the Monstrillidie, Copepods para¬ 
sitic in Annelids, and of Metschnikovella , parasitic in Gregarines. 
T. c. pp. 220 & 221. 
253. Michaelsen, W. Die Polychaetenfauna der deutschen Meere ein- 
schliesslich der benachbarten und verbindenden Gebiete. Wiss. 
Meeresuntersuch. (N.F.) Bd. ii, Heft 1, 1897, pp. 1- 216, Taf. i. 
254. -. Revision der Kinberg’schen Oligochseten-Typen. Ofv. Ak. 
Fork. 56, 1899, pp. 413-448, 3 figg. 
255. -. Terricolen von verschiedenen Gebieten der Erde. 2 Beiheft 
Hamburg Anst. xvi, pp. 1-122, 22 text-figg. 
256. -. Beitrage zur Kenntniss der Oligochaten. Zool. Jahrb. Syst. 
xii, pp. 105-144, 2 figg. 
