366 Mr. H. J. Carter on 



fresh not stated, now light whitish yellow. Surface cacti- 

 form, covered by a reticulated dermis. Pores in the inter- 

 stices of the dermal fibro-reticulation. Vents here and there 

 along the upper part. Spicules of two forms, viz. acuate and 

 acerate, both about the same size, viz, 80 by 2-g-6000ths, and 

 both merging into each other by gradational variation, chiefly 

 confined to the interior of the fibre and projecting through it. 

 Structure soft on the surface, condensed to hardness internally, 

 thus forming a solid skeletal mass of spicules and sarcode 

 like that of the foregoing species. When dry the dermal 

 structure, by its dark brown translucent gluey appearance and 

 nature, contrasts strongly with the opaque white skeletal fabric 

 beneath, as in A, cactiformis. Size of specimen about 2x2 

 X 2 in. 

 Depth not stated. 



Group 7/ Leucophlceina. 



35. Ciocoly])ta 'peniciUus^ Bk. (Mon. B. S. vol. iii. 



pi. xiii. fig. 2, &c.), var. aciculata. 



Ohs. The only difference between this and Dr. Bowerbank's 

 specimen is that the spicule is sub-pinlike, with fusiform 

 shaft, instead of simply acuate. Depth 9 fath. 



36. Ciocalypa Tyleri, Bk. (Proc. Zool. Soc. 1873, 



pi. iv. fig. 9). 



Ols. Of this there are two specimens, depth 19 and 11 

 fath. respectively. 



37. LeucopMcea mas sails ^ Cart. ('Annals,' 1883, 

 vol, xii. p. 323, pi. xiv. fig. 15). 



Depth 19 fath. 



Fam. 3. Pseudoechinonemida. 



ECHINONEMATINA ArENACEA. 



38. WilsoneUa austraUeiisis. 



Flabelliform, stipitatCj wavy, undulating in lines radiating 

 from the base to the circumference ; stem short. Consistence 

 firm, resilient. Colour when fresh " white," much the same 

 now. Surface areniferous, scattered over uniformly with 

 papillary elevations about 5-l2ths in. apart, on the summit of 

 each of which is a large vent defined by a circular thin mar- 



