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BIBLIOGRAPHY.

330 BIBLIOGRAPHY.

Komee (E.) Beschreibung neuer Venus- arten. Mai. B. iv. p. 148. Voit, Cael. — Anhaltspunkte fiir die Physiologie der Perl-Muscheln.

Z. W. Z. x. 470. Vrolik.— Rapport sur le Taret. A. S. N. xiii.

4. Molluscoida.

Aplix, C. D'Otlet, H. — Ereshwater Polyzoa, in Australia. A. N.

H. 3 ser. vi. p. 454. Busk, Geo. — List of Marine Polyzoa, collected by George Barlee,

Esq., in Shetland and the Orkneys, with Descriptions of the new

Species. Hep. Brit. Assoc. 1859. Trans. Sect. p. 144. - — Descriptions of new Species of Polyzoa, collected by George

Barlee, Esq., in Shetland. Q. J. Mic. Sc. (Zoophytology), viii.

p. 123, 143, 213.

Catalogue of the Polyzoa, collected by J. T. Johnson, Esq.

at Madeira, in the years 1859 and 1860. Q. J. Mic. Sc. (Zoophy- tology), viii. p. 280. Clapae^de, Ed.— Beitrage zur Eauna der Schottischen Kiiste. Z. w. Z. xx. p. 401.

Contain : 1. On the Sexual propagation of Medusae by Medusae.

2. On the " Haus" of Appendicularia. M. Claparede noticed this structure universally in Appendicularia Cophocerca, taken abundantly in Lamlash Bay. He describes it as resembling a very transparent bivalve shell of an oval form. That it is not a nidamental organ, as suggested by Albnan, is shown by its occur- rence, in M.Claparede's experience, only in males.

3. " Die hutformige Larve." Amicroscopic creature, shaped like a Erench officer's cap, the concavity and lower border are covered with cilia. The lower border is toothed and marked with reddish granules. Erom the middle of the concavity projects a bundle of about 40 long setae, which the animal has the power of spreading out or closing together. Each seta is bulbous at the free extre- mity and beset with short spines. M. Claparede thinks it pro- bable that the creature represents an Annelid Larva.

Hincks, Thos.— Descriptions of new Polyzoa, from Ireland. Q. J.

Mic Sc. (Zoophytology), viii. p. 275. Houghton, W. — Note on JFredericella Sultana, being found in the

winter. Ann. Nat. Hist. 3 ser. vi. p. 389. Huxley, T. H. — Observations on the Development of Pyrosoma.

Ami. N. H. 3 ser. ii. p. 29, (Abstract of Observations laid before

the Linnean Society, Dec. 1, 1859). On the Anatomy and Development of Pyrosoma. Linn.

Trans, xxiii. p. 193. Kepeestein, W., and Ehlers, E. — Anatomie und Entwickelung von

Doliolum. Wiegm. Arch. I. 1860. p. 334. (from Gott. Nachr.

1860— No. 23, 25-26.) M'Gilliveay, P. H. — Notes on the Cheilostomatous Polyzoa of Vic- toria and other parts of Australia, (plates). Vict. Trans. I860, p. 159.