OCR Text |
Show 1877.] ANTHOBRANCHIATE NUDIBRANCHIATE MOLLUSCA. 227 b. Body very depressed, with large spicules symmetrically arranged. Spawn of many narrow coils. Odontophore with two large broad spines and two rudimentary ones; no central plate. 14. LAMELLIDORIS DEPRESSA, Aid. & Hanc. D. depressa, Aid. & Hanc. Ann. & Mag. Nat. Hist. ix. p. 32. Villiersia scutigera, D'Orb.1 Mag. de Zool. vii. "Mem. sur des esp. &c. de l'ord. des Nud." p. 14, pl. 109. f. 1-4 (1837). 15. L. INCONSPICUA, Aid. & Hanc. D. inconspicua, id. Mon. Br. Nud. Moll. p. 43, and pt. 5, fam. 1. pl. 12. f. 9-16 (1851). Onchidoris inconspicua, Gray. Hab. British coast (Northumberland). 16. L. GRISEA. D. grisea, " Stimps. MS.," Gould, Inv. Mass. 2nd ed. p. 232, pl. 20. f. 292, 295 (1870). Hab. E. N. America (Massachusetts). 17. L. TENELLA. D. tenella, Agass. 1850 (no descr. or fig.) ; Gould, /. c. p. 229, pl. 20. f. 289, 290, and 293. Hab. E. N. America (Massachusetts). 18. L. PUSILLA, A. & H. D. pusilla, id. Ann. & Mag. Nat. Hist. xvi. p. 313 (1845). O. pusilla, Gray. Hab. S. coast of England (Devonshire). 19. L. SPARSA, A. & H. D. sparsa, id. 1. c. vol. xviii. p. 293 (1846). O. sparsa, H. & A. Adams. Hab. British coast (Cullercoats). 20. L. LUTEOCINCTA. D. luteocincta, M. Sars, Bidr. til Kundsk. Chr. Faun. ii. p. 77 (1870). Hab. Scandinavian coast (Vallo). 21. L. ECHINATA. D. echinata, Loven, Ind. Moll. Lit. Scand. &c. p. 5 (1846). " ? D. affinis A. & H.," Loven. Hab. West Scandinavian shores (Boh). i Messrs Alder and Hancock showed that the Villiersia scutigera of D'Orbigny was closely allied to, if not identical with, L. depressa, and that the generic characters were based upon erroneous observations-a view since confirmed by M . Fischer. Notwithstanding this, the genus "Villiersia," like "Onchidoris," still finds a place in our text-books. |