NORTH SIDE OF THE BAY OF BISCAY, IN AUGUST, 1906. 379 



Locard considers that the shell found in the Atlantic differs from 

 that found in the Mediterranean, and calls them var. atlantica and 

 var. meditei'ranea, the sculpture of the latter being stronger than in 

 the former. Not having had the opportunity of examining a large 

 series from both localities, I do not care to offer an opinion, as Locard 

 also remarks that the Atlantic variety was not always confined to 

 this habitat, as he has found it in the Post-pliocene of Italy. 



Station IV. 109 fathoms. Four living, two male, two female, the latter 

 being the largest. This appears to be the most northernly record for this 

 species. 



SCALID-ffi. 



ScALA, Humphrey. 

 (1) Scala clathrus (Linne). 

 Turho clathrus, Linne. Syst. Nat., 1758, ed. x, p. 765 (partly). 

 Scalaria comiimnis, Lamarck. An. s. Vert. 1822, vi. (2), p. 228. 

 „ „ Forbes and Hanley, 1853, Hist. Brit. Moll, 



pi. Ixx, figs. 9 and 10. 

 Dredged by the Porcupine, 1869, in Donegal Bay, 1870, off 

 Cape Sagres, and in the Mediterranean at Algeciras Bay and on the 

 Adventure Bank. 



Station I. 75 fathoms. One dead shell. 



(2) Scala trevelyana (Leach in Johnston). 

 Scalaria trevelyana (Leach MS.), 1853. In Forbes and Hanley, 

 Hist. Brit. Moll., iii, p. 213, pi. Ixx, figs. 7 and 8 ; pi. FF, figs. 1-3. 

 Distribution, North Atlantic, from Norway to the Sahara coast. 

 Station XI. 146 fathoms. One dead shell. 



(3) Scala richardi (Dautzenberg et de Boury). 



Scalaria richardi, Dautzenberg and de Boury, 1897. Mem. Soc. 

 Zool. de France, x, p. 68, pi. ii, fig. 5. 



Dredged by the Hirondelle, 1888, off the Azores ; and Princess Alice, 

 1895, also off the Azores. 



None but dead shells seem to have been found, and the species 

 was described from imperfect specimens. 



Station IX. 240 fathoms. One dead shell with the mouth imperfect. 



TURRITELLID^. 



TuRRiTELLA, Lamarck. 

 Turritella communis, Eisso. 

 Turritella communis, Eisso, 1826. Hist. Nat. Europe ]Merid., iv, 

 p. 106, fig. 37. 



NEW SERIES. — VOL. VIII. NO. 4. 2D 



