ECHINOMENIA-LEPIDOMENIA. 309 



terior end in front of the anus. Of the internal organs, only the 

 intestinal tract, a dorsal gonad and the four longitudinal nerve 

 trunks typical of the Aniphineura, were distinguished, the specimen 

 being in bad condition (fig. 94). A second specimen of the same 

 species was found at Marseilles by Kowalevski and Marion in 1882 

 and more exactly studied. The scales of this animal were not so 

 moveable as those of N. coralliophlla, but fast in the integument. 

 Intestine and genital glands showed no constrictions, but formed two 

 straight canals lying over one another. On the floor of the oeso- 

 phagus a small radula wasfound, consisting of six pairs of booklets i 

 those of the forward three pairs were small and curved, the hind 

 three pairs much larger and branching. Heart, uterus and oviduct 

 resembled the corresponding organs in Proneomeula. In reference 

 to the characteristic scaly integument, the generic name Lepidome- 

 Ilia was proposed for this species. (Kow.). 



LaCalle, Algeria on red coral; (^Marseilles f). 



Neomenia coralUophila Kow., Bull. Roy. Soc. Friends of Natural 

 Science, etc., 1881, vol. 43, p. 5, pi. 1, 2 (Russian) ; Zool. Jahres- 

 bericht for 1882, p. 28 (abstract by Kowalevski). — Lepidomenia 

 coTalUophila Kow. & Marion, Contributions a I'histoire des Solen- 

 ogastres ou Aplacophores, in Ann. Mus. Hist. Nat. Marseille, iii, p. 

 7, 1887. — Echinomein'a coralUophila Simroth in Bronn, p. 233, pi. 

 10, f. 11-15. 



The notes on the Marseilles specimen given above apparently 

 apply to L. hystrix, subsequently defined. Simroth has restricted 

 the name Lepidomenia to the latter species, although from the pub- 

 lished record, the propriety of such a course is open to question. 



Genus LEPIDOMENIA Kowalevski & Marion, 1887. 



Lepidomenia Kowalevski, Zool. Jahresbericht fiir 1882, Mol- 

 lusca, p. 29 (1883) ; referring to article on Neomenia coralUopihila 

 and Cceloplana metschnikowii in Bull. Soc. of Friends of Natural 

 Science, etc., Moscow, xliii, 1881 (Russian). — Lepidomenia K. & 

 M., Comptes Rend., ciii, p. 757 ; Ann. Mus. Marseille, iii, 1887, — 

 Pruvot, Arch. Zool. Exper. et Gener. (2), ix, p. 730. — Simroth 

 in Bronn, p. 233. 



Body short, vermiform, tapering behind ; cloacae opening ventral. 

 Foot groove passing into the cloaca posteriorly ; foot flattened 

 behind. Spicules part sCale-like, part needle-shaped, part pyra- 

 midal, immobile ; radula well developed, biserial. No gills. 



