SUPPLEMENT. 197 



orange : liver brown. The stomach contains microscopic 

 Foraminifera, including Olohigerina and Cassidulina. 



Shell somewhat spindle-shaped, proportionally broader 

 (especially in the middle) than in any species of Siphonoden- 

 talium, nearly straight on the inner or ventral side, and gib- 

 bous or arched on the back, becoming suddenly contracted 

 towards the base, where it is much narrower than at the top, 

 very glossy, and transparent : sculpture none : mouth roundish- 

 oval : base flexuous, having two slight curved notches, one on 

 each side; the very young shell has a projecting laminar 

 process at the back. L. 0-15, B. 0-035. 



Habitat : Fine sand near Unst, in 85-140 f., local but not 

 uncommon (J. G. J.) ; N. of Hebr. 170 and 189 f. (C. and T.). 

 F. Barholmen, near Christiania (Crosskey and Kobertson) ! ; 

 Mollersdorff, Vienna basin (Homes) ! ; Rometta, near Messina 

 (Seguenza)I E. Norway, 50-300 f. (Sars)!; off Bayonne, 60-80 

 f. (He Folin) ! ; G. I^aples (Acton and Stefanis) ! 



Dentalium gadus of Montagu (p. 198) belongs to this genus, 

 and not to Ditrypa. Barrett dredged it in deep water at 

 Jamaica. D. coarctatum, Desh. (a Subapennine fossil), seems 

 to be a distinct species. 



P.191.— D.ENTALis. N.ofHebr.,170-500f.(C.andT.). F. 

 Sicily (Tiberi)! Var. infmidihulum. Shorter and less cylin- 

 drical being proportionally wider towards the mouth. Loch 

 Fyne. 



P. 195.— D. Tarentinum. F. Killiney (Walpole)! 



P. 196.— Z>. dentalis. E. Morbihan (Tasle). 



P. 197. — D. ABYssoRUM. Shetland, 78 and 82 f., two young 

 but living specimens ; Hebrides and Skye, apparently semi- 

 fossil ; N. of Hebr., 189 and 650 f. (C. and T.). F. Maccles- 

 field (Darbishii-e) ! E. Norway, 30-300 f., and var. as D. 

 agile (Sars) ! 



P. 199. — For " Gasteropoda " r. " Gastropoda ". 



P. 200. For " PULMONOBRANCHIATA " r. " PULMONIBRAN- 



[lATA ". 



P. 204, 1. 15 from top, for " Mangelia" v." Pleurotoma'' -, 

 and 1. 16, for " Amphisplup'a^^ r. '' Utriculus ". 



P. 209, 1. 16 from top, for " valves " r. " scales " ; and 1. 17, 

 for " calcareous " r. " chitinous ". 



P. 211. — Chiton eascicularis. F. Selsea (A. Bell) ! E. 



