20G AMERICAN JOURNAL 



Stexodoris rubra, Pse. — t. 14, fig. 2. 



Description. — Animal rounded above, subpellucid, covered 

 with rather remote light red papilla) ; tentacles moderately 

 developed, somewhat laterally compressed ; branchiae twelve, 

 forming a beautiful rosette, not extending over the margin of 

 the body. Color pale vermilion, branchiae and interstices of 

 tentacular lam alia; bright vermilion. 



Length 1 inch. 



Genus LOBIFERA, Pease. 



In Proc. Zool. Soc, 1800, we established a genus under the 

 name of Potybranchia. Being convinced that I was mistaken 

 as to the lobes enclosing true branchiae, however closely the 

 radiating lines may have resembled them, that name becomes 

 a misnomer, and we consequently have adopted the above. 

 We are gratified in being able to add two species, which fully 

 confirm the genus. 



LOBIFERA NIGRICANS, Pse. 



Description. — Body elongate, tapering, smooth, arched above; 

 lobes large, crowded, fan shape, not extending over the ante- 

 rior portion of the body ; head well developed, rounded in 

 front; tentacles long; labial tentacles projecting laterally; 

 edge of the mouth wrinkled ; foot grooved transversely, the 

 anterior portion broader than long, truncately rounded in 

 front ; the posterior portion is much the largest and longer, of 

 an ovate oblong form. Color deep velvet black, foot pale 

 slate, margined with yellow; the head and body is traversed 

 by a medial stripe, and also irregularly spotted with the same 

 eolor ; also a stripe of the same along the sides near the foot ; 

 cervical tentacles lineated with the same, the lobes ornamented 

 with an infra-marginal band, and studded with a few raised 

 dots of the same color; labial tentacles with a narrow pale 

 blue margin. 



Length lh inches. 



LOBIFERA TAPILLOSA, Pse. 



Description. — Body widest anterior to the middle, tapering 

 rapidly posteriorly; lobes orbicular, thin, ciliated covered with 

 small remote papillae and denticular vascular dots ; cervical 

 tentacles long, biiid at their outer third, remotely papillose, 

 approximating at their bases; labial tentacles stout and rather 

 short; foot very thin, auriculate and obtusely rounded in 

 front, tapering rapidly to a delicate point behind ; heart can 

 be seen to pulsate a little anterior to the middle of the back ; 

 vent a prominent tubercle on the right side, just below the 

 heart; eyes immersed between the posterior bases of the ten- 



