SPONGES — WHITELEGGE. 507 



ECHINOCHALINA GLABRA, Ridley and Bendy, sp. 



Echinoclathria glabra, Ridley and Dendy, Chall. Rep., Zool., xx., 

 1887, p. 163, pi. xxix., figs. 11, 11a, pi. xxxi., fig. 2. 



Station 48. 



Five examples of this species were obtained oE Wollongong. 

 They are mostly washed out sp^^cimens but they afibrd sufficient 

 characters to recognise their full specific value as described in 

 the " Challenger " Report. All the specimens are attached to 

 dead gorgonoid stems or to large branching colonies of bryozoa, 

 and agree with the figured type in contour less the fleshy con- 

 necting ridges, which are somewhat broken and only here and 

 there exhibit a continuous surface. 



The skeleton agrees with the published description. The 

 spicules, however, are slightly larger than those of the type, a 

 fragment of which was presented as a mounted slide by Prof. 

 Dendy fr<im the "Challenger" specimen (R.N. 7U7, Dendy). 

 The latter example afibrds the following spicular measurements : 

 echinating smooth subtylostyli 041 by 0-0063 mm.; long smooth 

 tylota 0-22 by 0-0032 mm. The spicules of the " Thetis " speci- 

 men are as follows: echinating smooth styli 0-12 to 0*16 by 

 0-007 to 0-008 ram.; tylota 0-2 to 0-23 by 0-0045 mm. 



Family AXINELLID^, Ridley and Dendy. 

 PHAKELLIA, Bowerbank. 

 PHAKELLIA JACKSONIANA, Dendy. 



Phakellia jacksoniana, Dendy, Proc. Roy. Soc. Vict., ix., n.s,, 



1897, p. 236. 

 Phakellia Jlahellata, Ridley and Dendy, Chall. Rep., Zool., xx., 



1887, p. 171, pi. xxxiv., figs. 2, 3, 3a, pi. xl., figs. 6, 6a. 



Station 44. 



Six examples of this well marked species were obtained ofi^ 

 Googee in 49 to 50 fathoms. 'J he specimens display considerable 

 variation ; they are flabellate, with here and there an elongated 

 opening in the frond; the rest are brnnched at the base, and 

 many are either slightly coalescent or free at their dilated apices. 

 Apart fiom the slight diflerence in habit the examples agree in 

 every detail as to surface, structure, and spicular characters with 

 the " Challenger " description and figures. 



