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, Chsetodermaproductum, 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. Expe*r. et Gener. (2), ix, p. 728. GRAFF, Neomeuia 

 u. Chsetoderma, in Zeitschr. 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, high, fully one-third the 

 height of the body ; spicules as in N. carinata ; 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 slsegten Solenopus, samt nogle oplysninger om 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. Differs from N. carinata 

 in the much greater height of the dorsal keel. 



N. GRANDIS Thiele. PI. 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, Zeitschr. fur Wissensch. Zool., Vol. 

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



