20 Spong. 
XVII. SPONGIvE. 
IV. SYSTEMATIC. 
[A name of a species, followed only by a reference to a 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 in, 
following the title in the list above (section i).] 
A. PORIFERA, GENERAL. 
Sponges divided into Ceratospongise, Silicispongise, and Calcispongiae; 
Goette (16) pp. 97-99. Sponges classified into (1) Calcarea, divided 
further into Ascons, Sycons, Leucons: (2) Acalcaria, comprising 
(a) Silicispongiae (Monactinellida, Tetraetinellida, Hexactinellida, 
Lithistida), (b) Ceraospongiae, (c) Myxospongiae; Haller (17) p. 69. 
Sponges divided into two classes, Calcarea and Non-calcarea; Master- 
man (41) p. 110. 
B. CALCAREA. 
(i) HOMOCCELA. 
Family Clathrinim:. 
Ascetta pnmordialis H., figured; Goette (16) p. 98, fig. 81. ( Leucosolenia ) 
coriacea (Mont.); Kerville (26) pp. 165, 174. 
Family Leucosoleniim. 
Leucosolenia variabilis (H.); Kirkpatrick (27) p. 318. 
(ii) HETEROCCELA. 
Family Sycettid^e. 
Sycon sen Sycandra, S. ciliatum ; Allen & Todd (2) pp. 314, 317: 
Kerville (26) pp. 165, 174. S. raplianus 0. S.; Kerville (26) 
pp. 165, 174 [vide n, c, ii]. 
Family Amphoriscid.e. 
Pericharax carteri, var. homorhaphis Pol. described; Wilson (71) p. 382. 
Family Grantim. 
Orantia compressa (Fabr.); Kerville (26) p. 175: Allen & Todd (2) 
pp. 314, 317 : Masterman (41) [vide n, b, i]: Bidder (4) [vide n, a, i], 
Rhabclodermella , n. g. of “ Sylleihidce? intermediate between Vosmaeria 
Lend, and Polejna Lend., for R. nuttingi , n. sp., from Monterey Bay, 
California; Urban (64). 
