42 Spang. 
xvn. SPONGLE. 
var. sertalis Lend., shown by examination of type specimen to be 
identical with E. pikei Hyatt; Whitelegge (65) p. 212. E. offici¬ 
nalis var. spinosa Lend., described; Whitelegge (64) pp. 98, 99 & 
117. E. officinalis varr. rotunda and tubulifera , in commerce; Seurat 
(52) p. 265. E. pikei (Hyatt), described; Whitelegge (64) pp. 100, 
101 & 118, pi. xii, figg. 21 & 21a: includes E. officinalis var. sertalis 
Lend.; Whitelegge (65) p. 212. E. zimocca 0. S., description and 
distribution ; Seurat (52) p. 263. 
Hippospongia canaliculata var. gossypiana , in commerce; Seurat (52) 
pp. 265 & 267. U. canaliculata var. elastica Lend.; Whitelegge (64) 
p. 101. H. equina var. elastica Lend.; Whitelegge (64) pp. 101 & 
118, pi. xii, fig. 22 : description and distribution; Seurat (52) pp. 263, 
264 & 267. IT. equina varr. jlabellum and mceandriformis , in com¬ 
merce; Seurat (52) pp. 265 & 266. H. mollissima Lend., p. 101, 
pi. xiii, fig. 23, its economic value, p. 56; W hitelegge (64). 
Hirdnia atra , n. sp., from Nassau Harbour, Bahamas, allied to II. acuta 
Hyatt; Whitfield (66) pp. 49 & 50, pi. v. H. australis Lend., p. 115; 
H. calyadcita Lend., p. 116; Whitelegge (64). H. purpurea , n. sp., 
from Nassau Harbour, Bahamas, allied to H. acuta Hyatt; Whitfield 
(66) p. 49, pi. iv. H. variabilis Lend.; Whitelegge (64) p. 115. 
H. variabilis var. dendroides (O. S.) Lend.; Topsent (59) p. *358. 
Leiosella jlabellum Lend., p. 94 ; L. Icevis Lend., p. 94 ; L. silicata Lend., 
described, p. 95: Whitelegge (64). 
Phyllospongia dendyi var. digitata Lend., described; Whitelegge (64) 
p. 94. 
Stelospongia aspergillum (0. S.) Lend., redescribed; Topsent (59) pp. 
358 & 359, pi. xiii, figg. 5 & 6, pi. xiv, fig. 1. S. australis var. conulata 
Lend, and var. fovea Lend., vide S. levis. S. canalis Lend., described; 
Whitelegge (64) pp. 114 & 115, pi. xv, fig. 31: note on British 
Museum type; Whitelegge (65) p. 212. S. cavernosa (0. S.) Lend.; 
Topsent (59) p. 358. S. flabelliformis Crtr., described, p. 115; S. levis 
Hyatt, described, synonyms S. australis varr. comdata Lend, and fovea. 
Lend., pp. 113 & 114, pi. xv, figg. 32, 32a & b: Whitelegge (64). 
Family Spongelihe. 
Spongelia farlovii var. densa Hyatt, belongs to the genus Coscinoderma , 
q. v. ; Whitelegge (64) p. 103. S. palmata Hyatt, vide Thorecta. 
S. rectilinea var. erecta Hyatt, vide Thorecta erecta. S. rectilinea var. 
tenuis Hyatt, vide Thorecta tenuis. 
Family Aplysinidjl 
Thorecta byssoides (Lam.), p. 112 ; T. cacos Lend., p. 104 ; T. erecta , for 
Spongelia rectilinea var. erecta Hyatt, described; synonym T. ex- 
emplum var. secunda Lend, and var. tertia Lend., pp. 108, 109 & 111, 
pi. xiv, figg. 29, 29a-e: Whitelegge (64). T. exemplum var. prima 
Lend., vide T. tenuis. T. exemplum var. secunda Lend, and var. tertia 
Lend., vide T. erecta. T. farlovii Lend., distinct from Spongelia 
farlovii var. densa Hyatt, and probably identical with Spongelia 
[Thorecta) palmata Hyatt, pp. 103 & 112; T. lobosa Lend., p. 112; 
T. meandrina Lend., described, pp. 104 & 105 ; T. marginalise for 
T. exemplum var. marginalis Lend., described, pp. 109-111, pi. xv, 
figg. 30, 30 a-d ; T. murrayi (Polej.), p. 104 ; T. palmata (Hyatt), 
described; synonym T. farlovii Lend., pp. 112 & 113, pi. xiii, figg. 25 
& 25a ; T. radiatus [sic] Lend., described, p. 104, pi. xiii, fig. 26 ; 
T. ramsayi Lend., the type is a specimen of Clathria australiensis 
