OPISTHOfiRANCHIATA. 
Moll. 73 
ScAPHANDRIDiE. 
Atys freyi, n. sp., Nossi-Be Is., Brancsik, Trencsen term. egy. xiii, 
p. 80, fig. 
J Bullinella, n. n. for Bullina , Risso ( Cylichiia , Loven), preoccupied; 
Newton, (298) p. 265. 
Cylichna grimaldii , Senegal, Dautzenberg, M6m. Soc. Zool. iv, p. 26, 
fig. ; C. ordinaria , Challenger Station 164 B, off Sydney, Smith, P. Z. S. 
1891, p. 442, fig. : n. spp. 
Bullid.®. 
Acera bullata , Mull., genitalia ; Mazzarelli, Zool. Anz. xiv, pp. 241— 
243, fig. The author considers Acera should constitute a distinct family. 
f Alccra siliciom , n. sp., Cretaceous of Syria ; Whitfield, Bull. Am. 
Mus. Nat. Hist, iii, p. 441, fig. x 
Bulla incommoda , n. sp., Challenger Station 164 B, off Sydney, Smith, 
P. Z. S. 1891, p. 442, fig. 
Ringiculid^e. 
■\Ringicula nuda, celata , n. spp., Cretaceous of Upper Bavaria, Boehm, 
Pala 3 ontogr. xxxviii, p. 53, fig. 
Philinid^i. 
fPhiline (Megistostoma) patula, n.sp., Cretaceous of Syria, Whitfield, 
Bull. Am. Mus. Nat. Hist, iii, p. 434, fig. 
Aplysiidj:. 
Morphology and physiology of the gland of Bohadsch ; Mazzarelli, 
Atti Acc. Napoli, iv, Append. No. 1 : genitalia, op. cit. No. 5. 
Anatomical notes; Mazzarelli, Boll. Soc. Nat. Napoli, v, pp. 188-191. 
Aplysia lobiancoi, n. sp., Posillipo, Mazzarelli, Atti Acc. Napoli, iv, 
Append. No. 1, p. 22. 
' Pleurobranchid;e. 
Oscanius tuberculatus , D. Ch., and membranaceus , Mtg., genitalia ; Maz- 
zarelli, Zool. Anz. xiv, pp. 238-241, figs. 
Pleurobranchcca meckelii, Leuo., gonitalia ; Mazzarelli, Zool. Anz. xiv, 
pp. 233-238, figs. 
Pleurobranchus : on the species in the Gulf of Naples ; P. stellatus , 
Risso, redescribed ; MAzzarelli, Boll. Soc. Nat. Napoli, v, pp. 69-76, 
figs. 
