SPONGES COLLECTED IN PORTO RICO. 
411 
LITERATURE REFERENCES. 
Carter, H. J. 1881. Supplementary report on specimens dredged up from the Gulf of Manaar, etc. 
Ann. Mag. Nat. Hist., ser. 5, vol. vii. 
. 1882. Some sponges from the West Indies and Acapulco, etc. Ann. Mag. Nat. Hist., ser. 5, 
vol. IX. 
. 1883. Contributions to our knowledge of the Spongida. Ann. Mag. Nat. Hist., ser. 5, vol. xn. 
— . 1886. Supplement to the descriptions of Mr. J. Bracebridge Wilson’s Australian sponges. 
An n . Mag. Nat. Hist., ser. 5, vol. xvm. 
Dendy, A. 1887. The sponge fauna of Madras. Ann. Mag. Nat. Hist., ser. 5, vol. xx. 
. 1890. Observations on the West Indian Chalinine sponges, etc. Trans. Zool. Soc. London, 
vol. xii, part 10. 
. 1894. Catalogue of non-calcareous sponges, collected by J. Bracebridge Wilson, etc. Part 1 . 
Proc. Roy. Soc. Victoria. Melbourne. 
. 1895. Idem. Part 2. Ibid. 
. 1896. Idem. Part 3. Ibid. 
Di chassaing de Fonbressin et Michelotti. 1864. Spongiaires de la Mer Carai'be. Haarlem. 
Hyatt, A. 1875. Revision of North American Poriferse. Part 1. Mem. Boston Soc. Nat. Hist., vol. 2. 
. 1877. Idem. Part. 2. Ibid. 
Lendenfeld, R. von. 1887. Die Chalineen d. Australischen Gebietes. Zool. Jahrb. Bd. 2. 
. 1889. A Monograph of the horny sponges. London. 
— . 1896. Die Clavulina der Adria. Abh. der Kaiserl. Leop. -Carol. Deutsch. Akad. der Natur- 
forscher. Bd. lxix. 
Lamarck, J. B. 1813.* Sur les Polypiers emp&tes: Eponges. Ann. Mus. Hist. Nat., xx. 
Polejaeff, N. 1883. Report on the scientific results of the voyage of II. M. S. Challenger. Zoology, 
vol. viii. Report on the Calcarea. 
. 1884. Idem. Zoology, vol. xi. Report on the Keratosa. 
Ridley, S. 0. 1884. Report on the zoological collections made in the Indo-Pacific Ocean during the 
voyage of H. M. S. Alert, 1881-82. Spongiida. London. 
Ridley, S. 0., and Dendy, A. 1887. Report on the scientific results of the voyage of Id. M. S. Challenger. 
Zoology, vol. xx. Report on the Monaxonida. 
Schmidt, 0. 1862. Die Spongien des Adriatischen Meeres. Leipzig. 
. 1864. Supplement der Spong. d. Adr. Meeres. Leipzig. 
. 1868. Die Spongien der Kiiste von Algier. Leipzig. 
•. 1870. Grundziige einer Spongien-Fauna des Atlantischen Gebietes. Leipzig. 
— . 1880. Die Spongien des Meerbusens von Mexico (und des Caraibischen Meeres). Jena. 
Schulze, F. E. 1877. Untersuehungen fiber den Ban u. die Entwicklung der Spongien. Die Familie 
der Chondrosidae. Zeitschr. f. wiss. Zool. xxix Bd. 
. 1879 a. Idem. Die Familie der Spongida?. Ibid, xxxii Bd. 
. 1879 5. Idem. Die Gattung Spongelia. Ibid, xxxii Bd. 
= — . 1879 c. Idem. Die Gattung Hircinia Nardo und Oligoceras n. g. Ibid, xxxiii Bd. 
. 1887. Report on the scientific results of the voyage of H. M. S. Challenger. Zoology, vol. 
xxi. Report on the Hexactinellida. 
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vol. xxv. Report on the Tetractinellida. 
Topsent, E. , 1894. Une reforme dans la classification des Halichondrina. Mem. Soc. Zool. de France, vn. 
— , 1898. Introduction a 1’ etude monographique des Monaxonides de France. Classification des 
, Hadromerina. Arch, de Zool. exp. et gen. (3) vi. 
, 1900. Etude monographique des Spongiaires de France, hi. Monaxonida (Hadromerina). 
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Verrill, A. E., and Smith, S. I., 1874. Report on the invertebrate animals of Vineyard Sound and 
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Heidelberg. 
Weltner, W., 1882.* Beitriige zur Kenntniss d. Spongien. Inaug. -Dissert. Freiburg. 
Wilson, H. V., 1894. Observations on gemmule and egg development of marine sponges. Journ. 
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Wright, E. P., 1881.* On a new genus and species of sponge (Alemo seychellensis ) , etc. Trans. Roy. 
Irish Acad., vol. xxvm (Sci.). 
* I have been unable to consult directly the memoirs marked with an asterisk. 
