56 BULLETIN 111, UNITED STATES NATIONAL MUSEUM. 



The following are the museum collection records: 



Locality. 



Remarks. 



Frpderickstadt, Blake Station 130 



Off Cape Fear, U. S. B. F. Station 2616 



Off Fowev Light, Florida, Eolis Station 353 



Off Cape Florida, Florida, U. S. B. F. Station 264 



Off Fowey LiRht, Florida, Eolis Station 372 



Between Mississippi Delta and Cedar Keys, U. S. 



F. C. Station 2398. 

 Off Cape San Bias, Florida, U. S. B. F. 2399.... 



N. W. of Tortusas, Blake Station 44 



Off Morro Light, Habana, Blake Station 100 



Off Arrowsraith Bank. Yucatan, TJ. S. B. F.2355 



St. Vincent, West Indies, Blake Station 230 



Martinique, Blake Station 211 



451 fms. (tj'pe') gy. oz., 44.5° 



17 fms., s. p. 



85 fms. 



193 fms., gy. s., 43.4°. 



100 fms. 



227 fms., 48.0° gy. m. 



196 fms., gy. m., 51.6°. 



539 fms., 39.5°. 



400 fms. 



399 fms., vl. oz. 



464 fms., 41.5- fne. s. 



357 fms., fne. s. 



DKNTALIUM (ANTALIS) TUBULATUM, new species. 



Plate 8, fig. 5. 



The shell is of porcellanous texture, almost straight, with a very 

 gradual increase in diameter; it has 16 sharply defined longitudinal 

 riblets, separated by smooth intercostal spaces, double their vddth; 

 no intercalation takes place before a point about midway between the 

 tip and the aperture; then one delicate wavy riblet faintly appears in 

 each space. These secondaries gradually increase in importance, 

 widening as do the original primary riblets imtil at the oral end of the 

 shell all are so widened and flattened that the intercostal spaces are 

 almost obliterated. Over the anterior portion of the shell distinct 

 growth lines produce a wavy appearance in the riblets. The cyhnder 

 is round and the aperture is not oblique. There is a broad and shallow 

 apical notch on the convex side. 



This species is closely related to Bentalium hartletti, but differs in 

 its straightness, its slenderness, and round section, the less glazed 

 surface, and finally in its 16 instead of 18 primary riblets. 



The type. Cat. No. 95367, U.S.N.M., measures: Length, 37 mm.; 

 diameter, 2.4 mm.; curvature, about 0.90 (tip gone). It is from a lot 

 of two specimens,' the other measuring — Length, 37 mm.; diameter, 

 2.25 mm. ; arc, 1 (tip gone) ; and was dredged off Bahia Honda, Cuba, 

 by the Blake at the United States Coast Survey Station 20, in 220 

 fathoms, bottom temperature 62° F. 



Other lots are five specimens (fragments). Cat. No. 108160, 

 U.S.N.M., from U. S. B. F. Station 2668, off Fernandina, Florida, 

 in 294 fathoms, gray sand and dead coral, bottom temperature 46.3°. 



Subgenus HETEROSCHISMA Simroth, 1895. 



1895. Heteroschisma Simroth, Bronn's Klassen u. Ordnungen des Thier-Reichs, 

 vol. 3, p. 460. 



Shell coarsely striate longitudinally and with an apical slit placed 

 on the concave side. 



