SPONGOZOA. 
535 
Thecox>hora ihla, W. Th. ; Verrill, Am. J. Sci. (5) vii. pi. viii. fig. 8. 
DorvilUa ecliinata, sp. n. (? = Thenea muricata, Gray), id. 1. c. p. 501, 
Coast of New England. 
Guitarra fimhriata, g. & sp. nn., Carter (5), p. 210, pis. xiii. figs. 2-5, xv. 
fig. 34 (N. W. of British Isles). Sessile, conical, villous, the projecting 
extremities of the siliceous skeleton-spicules being arranged, somewhat 
spirally, in close tufts, and forming a tubular fringe around the apical 
vent, as in Grantia, while smaller vents are scattered over the surface 
generally ; interior massive, permeated by excretory canals, charged 
with fusiform skeleton-spicules and equianchorate guitar-shaped flesh- 
spicules, and surrounded by a cortical layer, chiefly coniposed of the 
former. 
Melananchara elUptica.! g. & sp. nn., id. 1. c. p. 212, pis. xiii. figs. G-12, 
XV. fig. 35 (between Scotland and Fsero). Free, globular, corrugated, 
studded with projecting tubercles on the upper two-thirds, smooth 
below ; dermis stiff, glistening, bladder-like, supported by linear 
intercrossing spicules, enclosing a soft fibreless parenchyma ; pores and 
vents in the cribriform tubercles; interior massive, permeated by 
excretory canals and charged with skeleton-spicules of two forms, and 
with melon-shaped equianchorate flesh-spicules. 
Esperia villosa, sp. n., id. 1. c. p. 213, pis. xiii. figs. 13-15, xv. fig. 36, 
and E. cupressiformis^ sp. n., id. 1. c. p. 215, pis. xiv. figs. 16-19, xv. fig. 37 
(between Scotland and Fasro). Desmacidon (^Esperia) anceps^ sp. n., 
O. Schmidt, Zweite deutsche Nordpolarfahrt, ii. (pt. 13) p. 430, pi. i. 
figs. 1-9. E. fahricans and intermedia.^ spp. nn., id. 1. c. p. 433, 
figs. 10-12. 
Chondrocladia virgata., W. Th. ; Carter, 1. c. p. 217, pis. xiv. figs. 20 & 21, 
XV. fig. 38. 
Histoderma appendiculatum., g. & sp. nn., id. 1. c. p. 220, pis. xiv. figs. 
23-25, XV. fig. 39 (W. of Ireland). Free, subglobular, smooth, with 
several narrow tubular prolongations, formed, like the sponge itself, of a 
soft fibreless parenchyma, enclosed in a stiff, glistening, bladder-like 
dermis, supported by a dense layer of linear intercrossing spicules ; pores 
and vents probably at the oxtrornitios of the tubes ; interior massive, 
permeated by the excretory canals, and charged with simple skeleton- 
spicules of two kinds ; flesh -spicules bihamate, equianchorate. [Accord- 
ing to a note from the author, = Ccclosphcera tuhifera, W. Th. ; Zool. Rec. 
X. p. 520.] 
Cliona ahyssorumy sp. n., id. 1. c. p. 249, pis. xiv. fig. 33, xv. fig. 45 (in 
Lophelia prolifera). 
Desmacella pumilio^ Schm., id. 1. c. p. 250, pi. xv. fig. 42. 
Reniera fihulata, Schm., id. ibid. pi. xv. fig. 44. 
Dictuocylindrus ancliorata^ sp. n., id. 1. c. p. 251, pi. xv. fig. 43. 
Gummina wallichi^ sp. n., id. 1. c. p. 252, pi. xv. fig. 46 (spicules from 
a sandy deposit, Agulhas Shoal, Cape of Good Hope) ; Corticium 
(g. n.) Jdttoni, sp. n., id. 1. c. p. 253, pi. xv. fig. 48 ; and Forcepia (g. n.) 
colonensis, id. 1. c. p. 248, pi. xv. fig. 47 (spicules from a sandy deposit. 
Colon, Panama). 
On Auloi'hipis, cf. siq^ra, p. 498. 
