20 ZOOLOGISCHE MEDEDEELINGEN — DEEL IV. 



Lit tor i n a Férussac. 



1. Littorina undulata Gray. 



Gray. Zool. Beech. Voy., p. 140. Philippi. Abb. Vol. II, p. 225, PI. 5, fig. 17, 18. 



Hollandia. 



Several small specimens, variable in colour-markings. 



2. Littorina scabra Linné. 



Linné. Syst. Nat. Ed. X, p. 770. Philippi. Abb., Vol. II, p. 37, PI. 5, fig. 3—7. 



Hollandia. 



One young specimen, slightly keeled, with more spirals, seems to differ 

 from the next species, and to belong to X. scabra. 



3. Littorina intermedia Philippi. 



Philippi. Abb. Vol. II, p. 223, PL 5, fig. 8 — 11. 



Hollandia. 



It is somewhat doubtful whether some of the specimens belong to the 

 preceding species, the last whorl being less rounded than in typical ones. 



Scutibranchia. 



Rhipidoglossa. 



Fam. Turbin idae. 



Turbo Linné. 



1. Turbo por phy rites Marty n. 



Martyn. Univ. Conch. PI. 70. Kiener. Coq. Viv. Vol. X, p. 71, PI. 7, fig. 2; 

 PI. 36, fig. 6; PI. 38, fig. 3. 



Kajo-bay, under stones between high- and low-watermark. 

 Two young specimens. 



Fam. Fissur ell idae. 



E m ar g i n u I a Lamarck . 



1. Emarginula sp. 



Kajo-bay, under stones between high- and low- watermark. 



Allied to E. variegata Ads. (Proc. Zool. Soc. Lond. 1851, p. 84), but 

 the figure of Tryon (Man. of Conch., Ser. I, Vol. XII, PI. 28, fig. 12) being 

 a copy of Sowerby's Thes. Conch, is purplish, though the description says : 

 „white"; it cannot be identified from littérature. The specimens are whitish 

 with more or less interrupted rays of brown (grey in description). 



