186 TRANSACTIONS LIVERPOOL BIOLOGICAL SOCIETY. 



Halichondria thomasi, B., XXX. 

 ,, tumulosa, B., 4, XI. 



Genus Beniera, Nardo. 

 Skeleton composed of definite, rectangular (sometimes 

 triangular or polygonal), typically unispicular meshes. 

 Spicules short oxea or strongyla, usually united together 

 at the ends only by spongin. No microscleres. 



Note. Some of the spicules of one species, viz., B. 

 anomala, are inflated in the centre. 

 Beniera anomala, B., L. 



bowerbanki, Norman, XL VIII. 

 . cinerea, Grant, XL VIII. 

 clava, B., LIII. 

 crassa, B., 4, VIII. 

 densa, B., L. 

 dichotoma, B., LIII. 



elegans, B., XLIX. (Topsent, 18, p. 70.) 

 ferula, B., 4, VIII. 

 filamenta, B., LXXXV. 

 fistulosa, B., LIII. 

 gregori, B., L. 

 incerta, B., LXXXIX. 

 indefinita, B., XLIX. 

 indistincta, B., LI. (Topsent, 18, p. 69.) 

 ingalli, B., LXXVIIL 

 luteosa, B., LXXXV. 

 mammeata, B., LI. 

 macandreivi, B., XLIX. 

 obscura, B., LXXVI and LXXXVII. 

 pallida, B., L. 

 parasitica, B., XLIX. 

 peachi, B., XL VIII. 

 permollis, B., XL VIII. 

 perplexa, B., 4, IX. 



