SYSTEMATIC. 
Spong. 13 
Family PHARETRONiDiE seu Pharetrones. 
iBactronella parviila, B. mistralis : Dennant & Kitson (8). 
■\Bla8tinia aspera: Fox-Strangways (12) p. 40. 
\Corynella sp. : Jahn (25). 
i Discoelia peronni : Baumberger (1) p. 21. 
\Elasmoiera sequana, E. crassa: Baumberger (1) p. 21. 
■\Elas7nostoma consobriiium, E. crassum^ E. scitulum^ E. sp. : Jukes-Browne 
& Hill (26) p. 504.—^. sp. : Jahn (25). 
iHolcospongia {Spongia) floriceps, H. polita {Stellispongia corallina) : Fox- 
Strangways (12) p. 40. 
iManon marginaUim: Jukes-Browne & Hill (26) p. 506. 
iOculospongia sp. : Baumberger (1) p. 21. 
iPeronidella recta, H. : Fox-Strangways (12) p. 40. 
iPharetrospongia strahani: Jukes-Browne & Hill (26) p. 504. — P. 
strahani: Hinde (19). 
iPlectroniiiia halhi: Dennant & Kitson (8). 
\Porosphcera, history, and full description of genus and species, pp. 1-25 ; 
P. glohularis, P. nuciformis^ P. woodivardi, P. pileolus redescribed, 
pp. 19-23; P. patellifonnis, n. sp., P. arrecta, n. sp. described, pp. 23, 
24 : Hinde (18). — P. glohularis^ P. nuciformis^ P. patelliforrnis : Hinde 
(19). — P.pileohts, P. sp. : Holmes (20). — P. glohularis: Jahn (25). — 
P. glohularis, P. glohularis var. 7iuciformis, P. pileolus, P. pileolus 
var. patelliformis, P. pileolus var. arrecta: Howe (41) p. 293. 
i Siphonocoelia crassa: Baumberger (1) p. 21. 
Sparsispongia gemmata: Baumberger (1) p. 21. 
'^Spongia \_Holcospongia'\ floriceps : Fox-Strangways (12) p. 49. 
i Stellispongia salevensis: Baumberger (1) p. 21. 
\Tretocalia pezica: Dennant & Kitson (8). 
\Tremospongia sp. Baumberger (1) p. 21. 
t Woodwardi : Jukes-Browne & Hill (26) p. 505. 
C. HEXACTINELLIDA. 
(i) LYSSACIJVA. 
Hexasterophora, characters of sub-order: Schulze (43) p. 172. 
Amphidiscophora, characters of suborder: Schulze (43) pp. 180, 181. 
Family Euplectellidjc. 
Euplectellidce, characters of family with list of genera: Schulze (43) 
pp 172, 173. 
Euplectella, characters of genus, p. 132 ; E. suberea W. T., redescribed, 
pp. 9-15; E. nohilis F. E. S. n. sp., described, pp. 15-17; E. asper- 
gillum R. 0., redescribed, pp. 17-21; E. (? simplex F. E. S.), re- 
described, pp. 21, 22: Schulze (43). — E. m6erea W. T., redescribed : 
Topsent (50) pp. 38, 39.—^., sp., described : Wilson (60) pp. 33, 34. 
HolasGus, characters of genus, p. 130; H. tenuis F. E. S. n. sp., described, 
pp. 3-7; H. ohesus F. E. S. n. sp., described, pp. 7, 8; H. fihulatus 
F. E. S., redescribed, pp. 8, 9 : Schulze (43). 
Malacosaceus floricomatus T., redescribed : Topsent (50) pp. 33-38. — M. 
unguiculatus F. E. S., redescribed : Topsent (53a). 
Regadrella, characters of genus, p. 134 ; R. (? phoenix 0. Sch.), described, 
pp. 22, 23: Schulze (43).— i^. phoenix Sch., redescribed: Topsent 
(50) pp. 39, 40; (53a).— sp., described, pp. 35, 36; R. delicata^ 
n. sp., diagnosed and described, pp. 36-42 : Wilson (60). 
