24 Spang. 
xvii. sponger. 
.358-361.—Carboniferous Limestone of Fife and Kinross, Acanthospongia , 
Ascodictyon , Hyalostelia , and Peronidella ; Peach (43) pp. 220, 221, 244, 
246, 248. 
(f) Devonian :—Upper Devonian Tuff-breccia, Prussia, Receptaculites 
neptuni ; Drevermann (20) pp. 182, 184, 186, 206.—Middle Upper 
Devonian (Chemung Beds) of New York, Neplieliospongia typica and 
N. avocensis, n. g. et spp.; Clarke (11).—Sponges in the Helderbergian ; 
Clarke (12) pp. 92 & 95. 
(g) Silurian:-—A Silurian Sponge {Astylospongia prcemorsa) in the 
Stramberg strata ; Remes (46 a). —Silurian Sponges in Miocene of Sylt 
Island ; Stolley (55).—Silurian of Luneburg, Wiegers (68) p. 247. 
(h) OrdovicianTrenton Formation of Manitoba, Receptaculites, 
Ischadites , Pasceolus , Aulocopella and Trichospongia ; Dowling (19). 
(k) Cambrian:—Cambrian Sponges in Miocene of Sylt Island; 
Stolley (55).—Cambrian of Eastern Salt Range, Cylindrites sp.; Redlich 
(46). 
(l) Vacant. 
IV. SYSTEMATIC. 
[A name of a species, followed only by a reference to an author’s name 
from the list of titles, is a record of occurrence pure and simple. The 
locality (or horizon) can be found by looking up the reference letters 
of section hi, following the title in the list above (section i).] 
A. PORIFERA, GENERAL. 
Vacant. 
B. CALCAREA. 
(i) HOMOCCELA. 
Family Clathrinida:. 
Ascandra angulata Lend. [ = Clathrina lacunosa (Johnst.)]; Arnesen (5) 
p. 13; (6) p. 68. 
Ascetta blanca (M. Mcl.) H., pp. 9 & 10; A. coriacea (Mont.) H., pp. 10 & 11, 
(6) pp. 67 & 68; A. lamarcki (H.) pp. 11 & 12; Arnesen (5). Leuco¬ 
solenia lamarcki (II.), from Antarctic Ocean, described ; Topsent (60) 
pp. 5, 9: Topsent (56) p. 1. A. primordialis H. ; Arnesen (5) pp. 12 
& 13. ( Leucosolenia ) primordialis (H.), var. dictyoides H., Straits of 
Magellan ; Topsent (60) pp. 3 and 9. 
Ascortis clarkii and A. fragilis ; Kingsley (31) p. 161. ( Ascandra ) 
fragilis (H.) ; Arnesen (5) p. 15; (6) pp. 68 & 69. 
Leucosolenia cancellata Merrill; Whiteayes (63) p. 11: Kingsley (31) 
p. 161. 
Family Leucosoleniida:. 
Ascandra armata (H.), p. 13; A. complicata (Mont.) H., pp. 13 & 14; 
A. variabilis H., pp. 15 & 16; A. corallorrhiza (H.), pp. 14 & 15; 
Arnesen (5); (6) pp. 68 & 69. 
