552 DR. J. E. GRAY ON SPONGliS. [^^^y *J> 



ACALLE RECXJRVATA. 



Sponyilla recurvata, Bowerb. B. S. f. 129, 224, 225 ; P. Z. S. 

 1863, t. 38. f. 10. 

 Hab. River Amazons. 



5. Drulia. 



Spon^e-spicules fusiform, smooth. Ovisac-spicules of outer sur- 

 face fusiform, smooth or spiculose ; of inner surface discoidal, with 

 an internal central umbo. 



1. Drulia brownii. 



Spongilla brownii, Bowerb. B. S. i. p. 136, f. 202, 226, 227, 

 301 a, &; P. Z. S. 1863, t. 38. f. 11. 

 Hab. River Amazons. 



2. Drulia batesii. 



Spongilla batesii, Bowerb. B. S. f. 204; P. Z. S. 1863, t. 38. f. 12. 



3. Drulia coralloides. 



Spongia coralloides, Bowerb. B. S. f. 13. 



Spongilla coralloides, Bowerb. P. Z. S. 1863, t. 38. f. 13. 



III. The ovisac covered externally with fusiform or cylindrical spi- 

 cules, placed at right angles with the surface, and with spicides 

 in lines radiating from the centre to the circumference of the 

 ovisac, without any birotiform or discoidal rays. 



6. EUNAPIUS. 



Sponge-spicules smooth. Ovisac with outer surface reticulated, 

 areolated. Spicules fusiform, smooth. 



1. EUNAPIUS carteri. B.M. 



Spongilla f via tilist. Carter, Journ. R. A. Soc. Bombay, 1849, 

 p. ,3, t. 1. f, 3. 



Spongilla carteri, Bowerb, B. S. f. 201, 284. 

 Hab. Bombay. 



2. EUNAPIUS PAUPERCULA. 



Spongilla paupercula, Bowerb. P. Z. S. 1863, t. 38. f. 21. 



7. Spongilla. 



Sponge-spicules fusiform, smooth. Ovisacs externally spiculose, 

 spicules fusiform, spinose or tubercular. 



1, Spongilla lacustris. Bower. B.S.f. 90, 203, 249, 320; P.Z.S. 

 1863, t. 38. f. 14. B.M. 



Hab. Europe. 



