hy 
368 BULLETIN OF THE MUSEUM OF COMPARATIVE ZOOLOGY. 
New Hebrides, etc. 
For figure of animal, shell-plate, jaw, and lingual dentition, see Fischer, 
Journ. de Conch., 1868, X VI. 230, Pl. XI. 
The animal has peculiar dorsal grooves. 
DOUBTFUL GENERA. 
Parmella, H. & A. Apams. (Proc. Zoél. Soc., 1867, 308, Pl. KIX. Fig. 20.) 
Fejee Islands. No information whatever given of the animal. Shell sigareti- 
form, as in Geotis, Peltella, and Mariella. 
Othelosoma, Gray. (Ann. Mag. Nat. Hist. New Series, III. 241.) — 
Gaboon. No exact description given. ‘ 
Damayantia, Issrn. (Ann. Mus. Genov., VI., 1874, Pl. IV. Fig. 4-6 and 
woodcut.) No shell; mantle anterior ; caudal pore. Borneo. I have not 
seen this description. 
Aspidiporus, Fitz. (1833, Verz., 90.) Vienna, Like Limaz, with per- 
forated mantle. 
Laconia, Gray. (Brit. Mus. Cat., 63.) Sublimaciform. Founded on 
Férussac’s Fig. 10, 11, of Pl. VIII. F. Shell of Vitrina, with large caudal pore. 
Shell concealed by mantle: rather heliciform. 
Oris, Risso. Syn. of Onchidium ? 
Limacellus, Buarnv. Sce Fér. Hist., p. 52, Pl. VII. Fig. 1, for full de — 
scription and figure. 
Parmula and Scutelligera are larve of insects. See Gray, Br. Mus. Cat., 
161. 
Eumelus, Deroceras, Zilotea, Urcinella, Testacina, Limacias, RarFi- 
NESQUE. (See Terr. Moll., V.,and Binney and Tryon’s edition of Rafinesque.) 
Plectrophorus, Bosc. See Férussac, Hist., p. 84, Pl. VI. Fig. 5-7. 
Phosphorax, WEBB & BertH. Animal limaciform, swollen at middle: 
tentacles simple: mantle large, anterior, with a posterior, small, phosphorescent 
disk, and concealing a shell-plate: no longitudinal furrows above the margin 
of the foot, and no caudal mucus pore shown in plate: distinct locomotive disk ! 
external anal and respiratory orifices on right anterior margin of mantle: gener- 
ative orifice? Internal shell-plate thick, oval, testaceous. Jaw? Lingual 
membrane ? Teneriffe. For figure of animal, see Férussac, Hist., Pl. Il. Fig. 8. 
A doubtful genus, so little do we know of it. It is impossible to ascertain its 
systematic position. 
A new genus of elasmognathous slug is indicated, but not named, in Zodl. 
Rec., 1877, p. 74, founded on Parmarion Kerstent. 
a 
