SYSTEMATIC. 
Spong. 17 
pp. 63-68 ; E. erectum mucronatum , n. subsp., diagnosed and described, 
pp. 68, 69; E. erectum gracile , n. subsp., diagnosed and described, 
pp. 69-72: Wilson (60 ).—E. alicei T., redescribed, p. 45: Topsent 
(50). 
Farrea , characters of genus: Schulze (43) p. 142. — F. occa B., n. var., 
laminaris, redescribed, p. 43 ; F. weltneri T., redescribed, p. 43 : 
Topsent (50). 
F. occa claviformis , n. subsp., diagnosed and described, pp. 57-59; 
F. mexicana , n. sp., diagnosed and described, pp. 60-62; F. sp., 
described, p. 62 : W ilson (60). 
Ramella , n. g., characters of, p. 144 ; R. tubulosa F. E. S., n. sp., described, 
pp. 38, 39 : Schulze (43). 
Sarostegia oculata , n. g., n. sp., described : Topsent (51). — S. oculata 
T., redescribed : Topsent (54). 
iStrephinia convoluta , S. retiformis : Jukes-Browne & Hill (26) p. 508. 
■\Verrucocoelia tubulata , V vectensis, V. sp. : Jukes-Browne & Hill (26) 
p. 509. 
Family Mellitttonidas (Aphrocallistidje). 
Aphrocallistidce , characters of family : Schulze (43) pp. 178, 179. 
Aphrocallistes , characters of genus, p. 148 ; A. beatrix J. E.G., redescribed, 
pp. 39-47 : Schulze (43). — A. azoricus T., redescribed: Topsent (50) 
pp. 48-50. — A. vastus F. E. S. (sp.?), redescribed : Wilson (60) p. 73. — 
A. sp. : Jukes-Browne & Hill (26) p. 505. 
t Stauronema carteri , S. lobatum , S. planum: Jukes-Browne & Hill (26) 
p. 508. 
Family M^sandrospongim:. 
iCallodictyon angustatum : Jukes-Browne & Hill (26) p. 505. 
t Camerospongia : Holmes (20). — C. aperta , C. campanulata } C. capitata , 
C. subrotunda : Jukes-Browne & Hill (26) p. 505. 
\Diplodictyon bayfieldi : Jukes-Browne & Hill (26) p. 506. 
t Etheridgea sp. : Jukes-Browne & Hill (26) p. 506. 
+ Plocoscyphia convoluta , P. sp. : Hinde (19). — P . : Holmes (20). — P. 
pertusa: Jahn (25). — P. convoluta , P. elegans , P. fenestrata, P. 
jlexuosa , P. foliacea , P. labrosa, P. meandrina , P. labyrinthica , 
P. reticulata , P. subruta , P. vagans: Jukes-Browne & Hill (26) 
pp. 507, 508. — P. convoluta : Rowe (41). 
+ Porochonia simplex : Jukes-Browne & Hill (26) p. 508. — P. simplex: 
Rowe (41). 
\Toulminia obliqua: Jukes-Browne & Hill (26) p. 509. 
t Tremabolites perforatus: Jukes-Browne & Hill (26) p. 509. 
Family Staurodermim:. 
+ Gincliderma quadratum : Jukes-Browne & Hill (26) p. 505. 
t Oplirystoma micrommatum: Jukes-Browne & Hill (26) p. 507. 
t Placotrema cretaceum: Holmes (20). — P.cretaceum: Jukes-Browne & 
Hill (26) p. 507. 
iPorostomia ( Porospongia ) sp. : Baumberger (1) p. 21. 
+ Purisiphonia clarlcei : Etheridge (11). 
Family CcELOPTYCHiDiE. 
+ Cceloptychium agaricoides , G. deciminium , C. sp. : Jukes-Browne & Hill 
( 26) p. 506. — C. agaricoides : Rowe (41). 
