NEOMENIA-PRONEOMENIA. 293 



* * Body rounded, not keeled dor sally. 



N. DALYELLI (Koren & Danielssen). PI. 41, figs. 28-31. 



Body circular in section, not keeled, spicules (fig. 28) large, 0*2 

 mill, long, those of needle-shape as long as the guttered ones. A 

 large spicule on each side of the cloaca. No digitiform glands ; 

 stomach folds 9 ; gill folds about 40. No organ of copulation. 

 Length 20, width in the middle 7 mill. 



Coast of Norway, 2-300 fms. ; North Atlantic, lat. 64 9 f N., long. 

 6 6' E., 157 fms. ; Scotland f 



Solenopus dalyelli KOR. & DAN., Archiv for Math, og Natur- 

 vidensk., ii, p. 127 (1877), trans, in Ann. Mag. N.H. (5),iii, p. 327. 

 Neomenia dalyelli NORMAN, Ann. Mag. N. H. (5), iv, p. 165. 

 WIREN, Kongl. Sv. Vet. Akad. Handl., xxv, p. 16, pi. 1, f. 22 ; pi. 2, 

 f. 6, 11-15; pl.3,f.9; pi. 5, f. 1-6,8-11 ; pi. 6, f. 4, 10,11, 16 ; pi. 9, 

 f. 5-10. PRUVOT, Arch. Zool. Exper. et Gener. (2), ix, p. 728. 

 SIMROTH in Bronn, p. 227. GARSTANG, Proc. Malac. Soc. Lond., ii, 

 p. 124. 



tVermiculus crassus DALYELL, Powers of the Creator, ii,p. 88, pi. 

 10, 11. 



N. MICROSOLEN Wiren. PI. 41, figs. 32-35. 



Body laterally compressed, higher than broad (?) ; spicules small, 

 the gutter-shaped and part of the needle-shaped ones 0*075 mill, 

 long, part of the needle-shaped only half that length. No large 

 cloaca spicules. Ventral furrow smaller than in the above species, 

 with 7 ventral folds. Gills 35. 



Santa Lucia, West Indies, 160 fms. 



Neomenia microsolen WIREN, Kongl. Sv. Vet. Akad. Handl., xxv, 

 no. 6, p. 16, pi. 1, f. 23 ; pi. 2, f. 5, 16 ; pi. 3, f. 10 ; pi. 6, f. 1. SIM- 

 ROTH, in Bronn, p. 227. 



Genus PRONEOMENIA Hubrecht, 1880. 



Proneomenia HUBRECHT, Zool. Anzeiger, iii, no. 70, p. 589. 



Body elongated, vermiform, the length 9-14 times the diameter, 

 tapering behind. Cloaca opening ventral. Foot present, the foot 

 groove passing into the cloaca. Cuticle thick with crossed spicules. 

 No gills. Radula multidentate. Two salivary glands. Penis want- 

 ing, numerous calcareous spicules functional as excitation organs. 

 Type P. sluiteri. 



