VERONICELLIDiE. 



8§ 



Athoracophorus, Gould. 



Sy7i. — Janella,Gray. Aneitea, Gra3^ Aneiteum, McDod. Tri- 

 boniopliorus, Hubert. 



Diffir. — -New Hebrides, etc. A. bUentaculata, Gray (ci, 51). 



Animal liraaciform. subcylindrical, tapering behind ; inferior 

 tentacles wanting ; mantle anterior, small, triangular, lateral, 

 adherent, enclosing the shell-plate; no longitudinal furrows above 

 the margin of the foot, and no caudal mucous pore ; no distinct 

 locomotive disk ; external respiratory and anal orifices on the 

 right central margin of the mantle ; orifice of the combined 

 genital system behind and below the right eye-peduncle. 



Shell-plate internal, flat, calcareous, oblong, sometimes in 

 separate grains. 



Jaw smooth, with median projection and quadrate accessory 

 plate. 



Lingual membrane with peculiarly shaped teeth, with long, 

 narrow, curving, base of attachment, and low, transverse, mul- 

 tifid cusp. 



The animal has peculiar dorsal grooves. 



CONOPHERA, Button. Eyc-peduncles short and conical. C. 

 marmorea, Hutton. New Zealand. 



Suborder DITREMATA. 



Male and female orifices widely separated ; oculiferous tentacles 

 simply contractile, not invertible. 



Family YERONICELLID^. 



Characters those of the genus Yeronicella. The Yeronicellidse 

 are terrestrial, the Oncidiidas, aquatic animals. 



Yeronicella, Blain (emend.), 181T. 



Syn. — Yaginula, Fer., not Yaginulus, Stoliczka. 



Distr. — Asia, Africa, South and North America, in warm lati- 

 tudes. V. Floridana^ Binney (cii, 66, 67). 



Animal limaciform, elongate-ovate, rounded above, flat below 

 margins expanded ; tentacles bifid, unequal, contractile ; mantle 

 covering the whole back ; no longitudinal furrows above the 

 margin of the foot, and no caudal mucous pore ; no distinct loco- 

 motive disk ; external respiratory orifice connecting with a tube 

 to the anal orifice at the extreme posterior under part of the 

 animal ; orifice of the male genital organ at the base of the rio-ht 

 tentacle, of the female organs at the middle of the right under- 

 side of the animal. No internal shell or plate. 



Jaw with numerous ribs. Lingual membrane quite peculiar, 

 marginals quadrate. 



The Yeronicellse of South America live in families, hiding 

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