212 TRANSACTIONS LIVERPOOL BIOLOGICAL SOCIETY. 



Dendoryx incrustans, Gray, v. viscosa, Topsent (9, p. 98). 



The larger of the two pieces sent to me for examination 

 is roughly cylindrical, 5 cm. in height, 2 cm. in diameter, 

 and is apparently cut off from a much larger specimen. 

 The meandering ridges of its surface are very similar to 

 those of Dendoryx incrustans of the British Coast. The 

 strongyla of the ectosome have two minute spines at each 

 end, and measure 0*16 by 0*005 mm. The spined styli 

 of the choanosome are 0*136 by 0*008 mm. The micros- 

 cleres are isochelse, 0*016 mm. in length or less and 

 sigmata, 0*024 mm. in length. 



Echinoclathria seriata, Grant. 



One specimen, of the usual character. 



Baspailia formida bills, n. sp . 



One single specimen, 4 cm. in height, consisting of a 

 large number of bushy branches from a common trunk, 

 the trunk being 8 mm. in diameter. Entire surface of 

 the sponge exceedingly spiny, the spicules projecting a 

 good distance beyond its surface. Skeleton consisting of 

 two kinds of spicules, (1) smooth styli, straight or slightly 

 curved 1*5 by 0*02 mm., and (2) echinating spined styli, 

 0*095 by 0*008 mm. 



Hymeniacidon carunculum, Bowerbank. 



One specimen, massive, measuring 3*5 by 2*5 cm. hori- 

 zontally and 1*5 cm. in thickness, of the usual characters. 



Tethya lyncurium, Lin. 



A single small specimen, 1*5 cm. in diameter. 



Order Monoceratina. 



Euspongia (osculata, v. Lendenfeld ?). See v. Len- 



denfeld (5). 

 Bepresented by a piece apparently cut off from a large 

 specimen. Colour (in spirit) reddish-brown. 

 Aplysilla {archeri, Higgin ?). See v. Lendenfeld (5). 



