152 
MOLLUSCA. 
Lophocercid^. 
Lojjliocercus sieloldi (Krolm), from Majorca, anatomically described ; 
its radula consists of unicuspidate teeth, one only in each row, and con- 
nected like a chain-saw, in this agreeing exactly not only with Lobiger^ 
but Pontolimax (Limapontia) and Elysia; these four genera form an 
ascending series, beginning with the most simple naked Pontolimax^ and 
finishing with Lohiger, which is provided with very distinct lateral lobes 
of the mantle and an external shell. Pagenstecher, Verh. Ver. 
Heidelb. (2) i. pp. 58-74 ; woodcut of a tooth, p. 70. 
Lophocercus {Cylindrohulla) souverbiei^ sp. n., Montrouzier, J. de 
Conch, xxii. p. 195, pi. vii. fig. 6, New Caledonia. 
ApLYSIID2E. 
Aplysia punctata (Cuv., nec Philippi) and cuvieri (Chiaje) = mar- 
ginata (Phil., yix Blainv.) described from sketches made by Lafont g,t 
Arcachon ; P. Fischer, Act. Soc. L. Bord. xxix. pp. 193 Sc 194. 
Phy Haply sia lafonti (Fischer) observed alive at Arcachon ; radula and 
(supposed) spawn described ; id. 1. c. pp. 194-197. 
Phyllaplysid punctulata, sp. n., Tapparone-Canefri, Malac. viagg. 
Magenta, p. 112, pi. ii. fig. 3 (animal and radula), Yokohama. 
NUDIBBANGHIA. 
PLEUROPHYLLIDIIDiE. 
R. Bergh, in Semper’s Reis. Arch. Philippin. ii. p. 247, gives a new 
list of the known genera and species of this family, describing the 
following : — 
Pleurophyllidia semperi (Bergh, 1860), p. 249, pis. xxv. fig. 1, xxxi. 
figs. 24 Sc 26, Philippines ; gracilis, sp. n., pp. 250-255, pi. xxxi. figs. 6-21, 
Bombay ; lugubris, sp. n., pp. 255-262, pis. xxxi. figs. 22 Sc 23, xxxii. 
figs. 1-17, Philippines; pallida, sp. n., pp. 262-265, pis. xxv. fig. 2, 
xxxii. figs. 18-29, Philippines. 
Diphy India pustulosa (Schultz) found at Arcachon ; P. Fischer, Act. 
Soc. L. Bord. xxix. p. 191. 
Linguella (Blainv., 1825). The original specimen has been examined 
by Bergh, and recognized to be a species of Sancara, perhaps quadri- 
lateralis (Bergh) ; fresh particulars concerning this species and L. (jS.) 
jaira (Bergh) ; Bergh, l.c. pp. 266-268, pis. xxxiv. figs. 23-26, xxv. fig. 1. 
L. punctilucens, sp. n., id. 1. c. p. 269, pi. xxxiv. figs. 2-22, China Sea. 
Pleuroleuridje. 
The above new family proposed for Pleuroleura, g. n., near Pleuro- 
phyllidia, but wanting the gills; tentacular shield without caruncles; 
back broad, its lateral edge with numerous urticatory pores ; jaws like 
those of Pleurophyllidia, but without masticatory process, and with a 
