SPURIOUS SCAPHOPODA, ADDITIONS, ETC, 247 



several narrow grooves." " Surface ornamented by spiral stride 

 that, from the portion of the surface preserved, passed around the 

 tube three or four times in a length of 6 centimeters, the tube hav- 

 ing a diameter of 7 mill, at aperture and 2 5 mill, at the posterior 

 end." 



The character of the sculpture — longitudinal grooves and spiral 

 strise — is radically unlike any form known to belong to the Scapho- 

 poda, and the genus can scarcely be admitted to be molluscan with- 

 out more evidence than the wretchedly preserved specimen yet 

 known affords. It may belong to the Vermes, or to the ancient 

 group of so-called Pteropocla. 



3. Sundry other non-molluscan organisms. 



Dentalium clausum Tukton, Conch. Diet. Brit. Is., p. 39 (1819). 

 Quill of a sea-bird's wing feather, teste Forbes & Han ley, and Jef- 

 freys. 



Dentalium cornicula d'0RBiC4NY, 1852. Prodr. Paleont. Strat., 

 Vol. iii, index, p. 59, = Dentalina cortiicula (Foraminifera). A 

 mistake in indexing. 



APPENDIX III. 



Additional data upon Recent and Fossil Scaphopoda. 



(Recent species'). 



D. ELEPHANTINUM L. (p. 1). 



Reported from the Red Sea by Issel, Mai. Mar Rosso, p. 235. 



D. BI8EXANGULATUM Sowb., (p. 15). 



Reported from the Querimba Islands and Mozambique (Peters 

 coll.) by von Martens, Monatsber. Preuss. Akad. Wiss. Berlin, 1879, 

 p. 739. 



D. OCTANGULATUM DoUOVaU (p. 16). 



Under the name D. octogonum, von Martens (Vorderasiatische 

 Conchylien, p. 102) records this from Bender- Abbas, Persian Gulf 

 (G. Doria !). See also Issel, Mai. Mar Rosso, p. 302. 



D. TEXASiANUM Philippi. PI. 37, figs, 1-9, 



See pp, 20-22, as D. gouldli. Two specimens are illustrated on 

 plate 37, collected at Sanibel Island, west coast of Florida, by Chas. 

 W. Johnson, They show considerable variation, but correspond 



