

ERRILL, A. E. Note on Borings of a Sponge in Italian Marble. 

 Amer. Journ. of Sci. and Arts, Her. 3, Vol. xvi. p. 406, 1878. [500 



VERRILL, A. E. Preliminary Check-List of the Marine Invertebrata of the 

 Atlantic Coast from Cape Cod to the Gulf of St Lawrence. Newhaven, 1879, and in 

 Public, of U.S. Nat. Mus. 1879. (Enumerates over 50 sp. of Sponges.) [501 



VERRILL, A. E. Recent additions to the Marine Invertebrata of the North- 

 r:i*tiTii Coast of America, &c. Porifera. Proc. U. S. Nat. Mim. 1879, p. 204. 

 (Describes Cladorrhiza (jnnulix, Verr.) [502 



VEJDOVSKY, FR. Die Siisswasserschwamme Bb'hmens. 4to. 42 pp. 3 pi. Prague, 

 1883. [503 



VK.TDOVSKY, FR. Contributions to our knowledge of Fresh- water Sponges. 

 (Bohemian.) Sitz. k. bohm. Geselhcli. 1883, pp. 1931, 1 pi. [504 



VOSMAER, G. C. J. Ueber Leucandra aspera, H. nebst allgemeinen Bemerkungen 

 iiber das Canalsystem der Spongieu. Tijdschr. d. Nederl. Dierk. V ere en. Vol. in. 

 pp. 144164, 1880. [505 



VOSMAER, G. C. J. Aanteekeningen over Leucandra aspera, H. Bijdrage tot de 

 kennis der Kalksponzen. Leiden, g$ pp. 2 pi. 1880. [506 



VOSMAER, G. C. J. The Sponges of the Leyden Museum. I. The Family of 

 the Desmacidince. Leyden Mu*. Notes, Vol. n. pp. 99164, 1880. [507 



VOSMAER, G. C. J. Die Fortpflanzung der Spongien. Biolog. Centralbl. Vol. i. 

 p. 103, 18812. [508 



VOSMAER, G. C. J. Report on the Sponges dredged up in the Arctic Sea by the 

 "William Barents," in the years 1878 and 1879. Niederl. Arch.f. Zool. Supplem. I. 

 58 pp. 4 pi. 18812. [509 



VOSMAER, G. C. J. (Polejaeff, N.) Ueber dis Sperma und die Spermatogenese 

 bei Sycandra raphanm, H. Biolon. Centralbl. Vol. in. pp. 180, 181, 1883. [510 



VOSMAER, G. C. Studies on Sponges. (VelinHB.) Mittheil. zool. Stat. Neapel, 

 Vol. iv. pp. 437447, 1883. (2 pi.) [ 5 n 



WALCOTT, C. D. Cyathophycus. Trans. Albany Instit. Vol. x. 1879. [512 



WALCOTT, C. D. On the Nature of Cyatlioplnjcus. Amer. Journ. of Sci. and 

 Arts, Ser. 3, Vol. xxn. pp. 394, 395, 1881. [513 



WALLACE, SAMUEL J. On the "Geodes" of the Keokuk Formation, and the 

 Genus BiopaUa, with some new Species. Amer. Journ. of Sci. and Arts, Ser 3 

 Vol. xv. pp. 366370, 1878. [ 5 t 4 



WALLER, J. G. On the so-called boring or burrowing Sponge, Clione celata, 

 Grant. Quekett Microsc. Club Journ. Vol. n. pp. 269 277, 1871. [515 



WALLER, J. G. Observations on the Fresh- Water Sponges. Journ. of Quekett 

 Microsc. Club, Vol. in. pp. 4248, 1872. (1 pi.) [516 



WALLER, J. G. On a New British Sponge of the Genus Microciona. Journ. of 

 Quekett Microsc. Club, Vol. v. pp. 15, 1878. (2 pi.) [517 



WALLER, J. G. On Variation in Spongilla fluviatilis. Journ. of Quekett Microsc. 

 Club, Vol. v. pp. 5362, 1878. (1 pi.) [518 



WALLER, J. G. On an Undescribed British Sponge of the Genus Raphiodwnu 

 (E. minima}. Journ. of Quekett Microsc. Club, Vol. vi. pp. 97 104, 1880. 

 (Ipl-) [519 



WALLER, J. G. On Clione celata. Does the Sponge make the Burrow? Journ. 

 of Quekett Microsc. Club, Vol. vi. pp. 251268, 1881. (2 pi.) [520 



WALLICH, G. On Siliceous Sponge-growth in the Cretaceous Ocean. Ann. and 

 Mag. of Nat. Hist. Ser. 5, Vol. vn. pp. 261263, 1881. [521 



WELTNER, WILH. Beitrage zur Kenntniss der Spongien. (Inaug. Diss.) 8vo. 

 62pp. Freiburg, 1882. (3 pi.) [522 



WHITFIELD, R. P. Observations on the Structure of Dictyophyton and its 

 affinities with certain Sponges. Amer. Journ. of Sci. and Arts, Ser. 3, Vol. 'xxn. pp. 

 5355, 1881. Ann. and Mag. of Nat. Hist. (5) Vol. vm. pp. 167, 168, 1881. (.523 



WHITFIELD, R. P. On the Nature of Dictyopliyton. With a note by J. W. 

 Dawson. Amer. Journ. of Sci. and Arts, Ser. 3, Vol. xxn. pp. 132, 133, 

 1881. [ 5 2 4 



T. 6 



