REPORT ON THE GASTEKOrODA. 673 



Family Aplysiad^;, d'Orbigny, 1853. 



Genera. 1. Aplysia, Linne. ^ 2. Dolabrifera, Gray. 



1. Aplysia, Linne, 1767. 



Aplysia depilans, Linne. 



Aplysia depilans, Linne, Syst. Nat., ed. 12, p. 1082, No. 1. 



Laplysia depilans, Lamarck, Anim. s. vert., voL vi. (2) p. 39, and (ed Desh.) vol. vii. p. 688, sp. 1 



{Aplysia). 

 Aplysia depilans, Deshayes, Encycl method., vers, vol. ii. p. GO, sp. 4, pi. lxxxiii. figs. 1, 2, pL Ixxxiv. 

 figs. 1, 2. 

 „ Philippi, Enumeratio Moll. Sicil, vol i. p. 124, sp. 6, vol. ii. p. 97, sp. i. 

 ; peter soni, Sowerby, Genera, vol. ii. pi. civ. fig. 1. 



,, and Aplysia depilans, Reeve, Conch. Icon., vol. xvii. pi. ii. figs. 1, 6. 

 depilans, Jeffreys, Brit. Conch., vol v. p. 7, sp. 2, pi. xcvii. fig. 2. 

 ,, Monterosato, Enumerazione, p. 52. 



December 1873. Simons Bay, Cape of Good Hope. 15 to 20 fathoms. 



.Habitat. — Guernsey, France, the Mediterranean (Jeffreys) ; Madeira (Watson). 



Mr Gwyn Jeffreys was good enough to examine this Aplysia for me, its occurrence at the Cape 

 making its careful identification desirable. It exactly corresponds with a specimen in the British 

 Museum marked " Aplysia Pclersoni, Sow.," a synonym of Linne's species. 



2. Dolabrifera, Gray, 1847. 



Dolabrifera triangularis, Watson (PI. L. fig. 7). 



Dolabrifera triangularis, Watson, Prelim. Report, pt. 20, Journ. Linn. Soc. Lond., vol. xvii. p. 346. 



December 1873. Simons Bay, Cape of Good Hope. 15 to 20 fathoms. 



Sliell. — Much arched, corrugated, porcellanous, dull, and scored on the upper surface 

 with sharp strong lines of growth, on the under surface lustrous and amorphous, with a 

 strong but irregular oblique longitudinal furrow and rough radiating lines toward the 

 back ; it resembles the blade of a fleam, being triangular, with a straight back, the handle 

 (where the nucleus is) in front, and the point (a bluntly rounded one) on the left. Bound 

 the nucleus there is an amorphous expansion and thickening ; across the blade obscure and 

 unequal rays diverge from a point behind the nucleus. The back of the blade is thick and 

 blunt, the other two sides are bluntly bevelled to a sharp edge. H. 0"43 in. B. 0"21. 

 Height of the arch, O'l. Greatest breadth behind, 0*3. 



(ZOOL. CDALL. EXP. PART XLII. 1886.) Tt 85 



