220 



SYSTEMATIC ARRANGEMENT 



" Central tooth of Dendronotus arborescens strong, nearly flat, in 

 front truncated, cutting edge triangular, serrulated ; lateral teeth 10, 



Fig. 119. — Teeth of Dendronotus arborescens. 



vn 



plate-like, adpressed, sublinear, in front extending into a long blunt 

 style, behind slightly arched, obliquely pointed, cutting edge serru- 

 lated on the outside, base somewhat produced." — Lovin. 



2. BoRNELLA. 



Body compressed ; cloak obsolete ; front of the head with two 

 stellated or fimbriated appendages. Tentacles two, retractile within 

 branched sheaths. Branchiae plumose, arranged on plain branched 



pedicels. Tongue ? 



1. B. Adamsii, t. 176. f. 6. 



3. LOMANOTUS. 



Body subquadrilateral, lanceolate, smooth. Head with a veil. 

 Tentacles two, clavate, lamellar, retractile within a sheath, Gills 

 papillose or foliaceous, in a nearly continuous line on the waved edge 

 of the mantle on the sides of the back. Lingual membrane broad, 

 with numerous series of denticulated spines ; no central series. Jaws 

 horny. 



1. L. Genei, t. 221. f. 2. 



2. L. marmoratus, t. 221. f. 1 . Forbes fy Hartley, B.M. t. Z.Z. f. 3. 



3. L. flavidus. Eumenes flavida, Alder $■ Hanc. Ann. Nat. Hist. 



xviii. 293. 



Fam. XIII. PROCTONOTID.E. 



Body depressed. Mantle indistinct. Tentacles four ; dorsal pair 

 not retractile, simple or laminated, not sheathed ; oral pair small. 

 Gills fusiform, arranged on an obsolete pallial ridge on the sides of 

 the back and in front of the head. Vent postero-dorsal. Jaws 

 horny, strong. 



1. Proctonotus. 



Body ovate, oblong, depressed, pointed behind ; forehead with a 

 small distinct veil. Tentacles four ; dorsal simple, linear, not lami- 

 nated ; oral elongate. Gills papillose, ovate, on the edge of the 



