40 



Bemerkung: Cheesemann 1. c. beschreibt das Thier in folgender Weise: 

 Body 3 — 4 inches long, broadly elliptical, depressed, nearly equally rounded 

 at both ends, colour varying from pale puff to a clear reddish brown, with irre- 

 guarly disposed blotclies of a ricli dark red-bro^vn; manthe large, extending over 

 and concealing botli head and fort, quite sniooth, margin thin, entire ; dorsal tenta- 

 des Short, stout, abruptly truncate, finely, transversely wrinkled, approximate at 

 their origin, bat gradually, diverging at their apices; colour reddish brown tipped 

 with white, eye-specks blac, placed a little distance the behind the tentacles, em- 

 bedded in the integument, but appearing trough it; oral tentacles united in front 

 by a thin semicircular expansion which froms a veil concealing the mouth, and 

 which is carried in advance of the foot; mouth roundish, with fleshy Ups; buccal 

 plates two, regularly reticulated; odontophore with numerous rows of similar unci- 

 fprm teeth. Bronchial plume placed in the groove betwen the foot and the mantle, 

 very large, composed of about 22 — 24 pectinations ; foot oblong, thin and flexible, 

 pale waxy wliite. 



12. Pleurobranchus testudlnarius Contraine. 



Taf. 8. Fig. 12. 13. 



Pleurobranchus Forskahlii delle Chiaje Mem. III p. 150 et 154 t. 41 



fig. 11. 



— mamillatus Schultz 1836 in Ptiilippi Enum moll. Sicil. 



I. p. 112. 



— tuberculatus Cantr. 1840 Mal. medit. p. 89. 



— testudlnarius Cantr. 1840 1. c. p. 88. 



— — Vaissiere 1880 Journ. Conch. XXVIII 



p. 209 t. 7 fig. 3. 



— — Locard Cat. gen. p. 64. 

 Susania testudinaria Monterosato 1884 Nom. Conch. med. p. 149. 



T. oblongo-ovata, tenuis, membranacea, flavida. 



Gehäuse länglich-eiförmig, dünnschahg häutig, von gelblicher Farbe. 

 Vaterland: Mittelmeer. 



