292 NEOMENIA. 



rnals, Bihang till K. Svenska Vet. Akad. Handl., iii, No. 13, pp. 

 1-12, pi. 1, 2 (1875). — Hansen, Neomenia, Proneomenia und Cha- 

 toderma, Bergens Museums Aarsberetning for 1888, art. vi, pi. 1, f. 

 1-7.— Norman, Ann. Mag.N. H. (5), iv, p. 165 (1879).— Simroth 

 in Bronn, p. 227, pi. 2, f. 1-13. — Wjren, Studien iiber die Soleno- 

 gastren II, Cbfetoderma productum, Neomenia, Proneomenia acum- 

 inata, in Kongl. Sv. Vet. Akad. Handl., xxv, art. 6, p. 15, etc., pi. 

 1, f. 17-20 ; pi. 2, f. 3, 7-9 ; pi. 3, f. 1-8, 11-14 ; pi. 4 ; pi. 5, f. 7 ; 

 pi. 6, f. 2, 3, 5-9, 12, 14, 15, 17 ; pi. 7 ; pi. 8 ; pi. 9, f. 1-4, 11-13 ; 

 pi. 10, f. 30, 31. — Pruvot, Organization de quelques Neomeniens, 

 in Arch. Zool. Exper. et Gener. (2), ix, p. 728. — Graff, Neomenia 

 u. Chpetoderma, in Zeitscbr. f. wiss. Zool., xxviii, p. 557, f. 1 (1877). 

 — Garstang, Proc. Malac. Soc. Lond., ii, p. 124, f. 2. 



N. AFFiNis (Koren & Danielssen). PI. 42, figs, below 6 and 7. 



Dorsal keel distinctly defined at base, bigb, fully one-third the 

 height of the body ; spicules as in N. carmata ; anatomy unknown. 

 Length 16, width 6, height 6 mill. 



Messina 20-30 fms. ; Genoa. 



Solenopus affinis KoR. & Dan., Beskrivelse over nye arter, hen- 

 horende til slregten Solenopus, samt nogle oplysninger ora dens or- 

 ganization in Archiv for Mathem og. Naturvidenskab, ii, 1877, p. 

 127. — Neomenia affinis Wiren, Kongl. Sv. Vet. Akad. Handl., xxv. 

 No. 6, p. 15, pi. 1, f. 21 ; pi. 2, f.4, 10.— Simroth in Bronn, p. 227. 

 — Pruvot, Arch. Zool. Exp. et Gen. (2), ix, p. 728. 



Internal anatomy not yet investigated. Difllers from N. carinata 

 in the much greater height of the dorsal keel. 



N. GRANDI8 Thiele. PL 42, figs. 10-16. 



Back keeled, the keel reaching to the mouth, where it is widened. 

 Ventral surface somewhat flattened, the ventral groove commencing 

 just back of the anterior end, with a furrow along each side of it, 

 defining two lips, the furrows meeting just in front of the cloaca, 

 folds of the ventral groove 13, decreasing to 5 behind. Gill folds 

 42. Cloaca situated ventrally behind, appearing as a longitudinal 

 crevice. Spicules (figs. 13, 14) long or short, needle-like or gut- 

 tered, those upon the cuticle inflected, in the anterior part of the 

 mouth small, lancet-shaped (fig. 11). 



Length about 40, breadth 10, height 8 mill. 



Naples. 



Neomenia grandis Thiele, Zeitscbr. fiir Wissensch. Zool., Vol. 

 58, p. 223, pf. 12, f. 1-50 (1894). 



