186/.] DR. J. E. GRAY ON SPONGES. 507 



with stellate spicules on the dermal surface. The stellate spicules 

 three-rayed ; the rays forked and reforked. — Bowerbanh, B. Sj)- f. 53. 



MacAndrewia azorica. Gray, P. Z. S. 1859, p. 438, Rad. 

 pi. XV. B.M. 



MacAndrewsia azorica, Bowerb. B. Sp. p. 204, t. 15. f. 274 (ske- 

 leton). 



Dactylocahjx hoioerbanJcii, Johnson, P. Z. S. p. 18G ; Bowerb. B. 

 Sp. f. 53. B.M. 



Dactylocalix bowerbanJdi, Bowerb. B. Sp. p. 236. f. 53. 



Hab. Azores: ^i.^i\c\\die\ {Mac Andrew) ; Madeira (/o/<;2Soh). 



The specimen which Mr. J. Yate Johnson has described under the 

 name of D. bowerhankii is larger, more orbicular, and expanded than 

 the one I described years before as MacAndrewia azorica ; but I 

 cannot see any other difference. 



** Network symmetrical. 

 4. Farrea, Bowerb. B. Sp. i. p. 204, ii. j). 12. 



Skeleton reticulate, symmetrica] ; filaments regular, with a con- 

 tuuious central canal and conical granulated tubercles on each side 

 of the intersections. Sarcode with many fusiform and slender bi- 

 hamate scattered spicules. 



Farrea orca, Bowerb. B. Sp. i. p. 204, ii. p. 12. f. 114, 199, 

 200, 277, 311 (skeletons and sponges); Owen, Trans. Linn. Soc. 

 xxii. t. 21. f. 8,9. 



Ilab. Seychclle Islands (Mus. Dr. Farre). 



Fam. 2. Aphrocallistid.i:. 



Sponge tubular ; tubes closed with a reticulated lid ; parietes 

 formed of agglutinated siliceous spicula, with round horizontal lateral 

 pores ; inner surface strengthened with clustered longitudinal bundles 

 of elongated spicula. 



This family is intermediate between Dactylocalycidcc and Eiiplee- 

 tellada; ; it has the distinct agglutinated netted spicula of the former 

 lined within by the bundle of elongated spicula of the latter. 



Aphrocallistes, Gray, P. Z. S. 1858, p. 114. 



Sponge tubular, closed with a lid, with smaller lateral tubular 

 branches, which are generally open at the end. 



In the description of this sponge in the ' Proceedings of the So- 

 ciety ' above referred to, it is said by a slip of the pen to be calca- 

 reous, Avhen it ought to have been siliceous. In all other respects I 

 have nothing to add to the description. 



Aphrocallistes Beatrix, Gray, P. Z. S, 1858, p. 114, Rad. 

 pi. XI. 



Hab. Malacca {Belcher). , B.M. 



