68 SPONGIDA. 



GRAY, J. E. On the peculiar Structure and Function of the Spicules of Hyalo- 

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GRAY, J. E. Observations on Sponges and on their Arrangement and Nomen- 

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GRAY, J. E. Note on Hyalonema Schnitzel, Semper. Ann. and Mag. of Nat. 

 Hist. Ser. 4, Vol. n. pp. 373378, 1868. [194 



GRAY, J. E. Note on Hyalonema boreali, Loven. Ann. Mag. Nat. Hist. Ser. 4, 

 Vol. i. p. 484, 1868. [196 



GRAY, J. E. On the name Alcyoncellum. Ann. Mag. Nat. Hist. Ser. 4, Vol. n. 

 pp. 390, 391, 1868. [196 



GRAY, J. E. Note on lanthella, a new genus of Keratose Sponges. Proc. ZooL 

 Soc. 1869, pp. 4951. [i97 



GRAY, J. E. On the Manner of Growth of Hyalonema. Ann. and Mag. of Nat. 

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GRAY, J. E. Note on a new Genus of Sponge from West Australia (Ecliino- 

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GRAY, J. E. Notes on Anchoring Sponges (Pheronema, Holtenia). Ann. and 

 Mag. of Nat. Hist. Ser. 4, Vol. vi. pp. 309312, 1870. [200 



GRAY, J. E. Note on Spongia linteiformis and S. lycopodium, Esper. Ann. 

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GRAY, J. E. Notice of a new Netted Sponge (Meyerella) from the Philippines. 

 Ann. and Mag. of Nat. Hist. Ser. 4, Vol. x. p. 76, 1872. [202 



GRAY, J. E. On the Name Tethya and its Varieties of Spelling. Ann. and Mag. 

 of Nat. Hist. Ser. 4, Vol. x. pp. 150, 151, 1872. [203 



GRAY, J. E. On the Animal of the Glass-rope. Ann. and Mag. of Nat. Hist. 

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GRAY, J. E. Notes on the Classification of the Sponges. Ann. and Mag. of 

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GRAY, J. E. On a new Genus of Hexaradiate, and other Sponges discovered 

 in the Philippine Islands by Dr A. B. Meyer (Crateromorpha) . Ann. and Mag. of 

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GRAY, J. E. Sponges from Ceylon. Ann. and Mag. of Nat. Hist. Ser. 4, Vol. 

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GRAY, J. E. On two new Free Sponges from Singapore (Psctalia, Labaria). 

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GRAY, J. E. Notes on the Siliceous Spicules of Sponges, and on their Division 

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GRAY, J. E. Natal Sponges (Leuconia, Ciocalypta). Ann. and Mag. of Nat. 

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GRAY, J. E. On the Genus Oceanapia, Norman (Rhizochalina of Oscar Schmidt). 

 Ann. and Mag. of Nat. Hist. Ser. 4, Vol. xn. p. 266, 1873. [211 



GRAY, J. E. On the Arrangement of Sponges. Ann. and Mag. of Nat. Hist. 

 Ser. 4, Vol. xm. pp. 284291, 1874. [212 



GRIMM, E. 0. Aralo-Caspian Eesearches (Kussian). St Petersburg, 1876, 1877. 

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GUILLAUME, . Notice sur les eponges du lac de Neuchatel. Bull, de la Soc. des 

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GUMBEL, C. W. Spongien-Nadeln im Flysch. Verh. k. Jc. geol Reichsanst. 

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HADLOW, H. The Hyalonema mirabilis. Tr. A. S. Japan, 1872-3, p. 10, 1874. 



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HJECKEL, ERNST. Ueber den Organismus der Schwamme und ihre Verwandt- 

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