430 BULLETIN OF THE 



orifice is nearly circular, but looks upward from its lower lip at about 45°. 

 The equator is opaque white, strongly marked, and contrasted with the trans- 

 lucency of the rest of the shell. Behind it the attenuation is very rapid, and 

 the posterior end unusually small for a Cadulus of this size. 



Cadulus Jeffreysi Monterosato. 



Caduhis Jeffreysi Monterosato, Conch. Medit., p. 10, 1875. 



C. subfusiformis Jeffreys, Brit. Conch., V. p. 196, pi. ci. fig. 3, not of M. Sars. 



C. diploconus Seguenza, fide Jeffreys. 



C. propinquus Verrill, Trans. Conn. Acad., V. p. 558, pi. lviii. figs. 31, 32, not of 



G. 0. Sars. 

 ? C. Jeffreysi Verrill, loc. cit., p. 559. 



Habitat. Barbados, in 100 fms. Off Martha's Vineyard, at U. S. Fish 

 Commission Station 871. 



The specimens have been compared with authentic types of C. Jeffreysi. 



Cadulus carolinensis Bush. 



Cadulus carolinensis Bush, Trans. Conn. Acad., VI. p. 471, pi. xlv. fig. 19, 1885; 



Rep. Com. Fisheries for 1883, p. 85, 1885. 

 Cadulus Olivii Jeffreys, MS., non Scacchi. 



Habitat. Off the Carolina coast, in 14 to 63 fms., sand, abundantly. U. S. 

 Fish Commission, also at Old Providence, in 382 fms., ooze, temperature 46°.0. 



Cadulus (carolinensis var. ?) Bushii Dall. 



Shell resembling C. carolinensis, but somewhat smaller, more abruptly con- 

 stricted behind the swollen portion, and with the posterior orifice a little 

 smaller. Lon., 6.5 ; max. diam., 1.25 mm. 



Habitat. Barbados, in 100 fms. 



In the present uncertainty as to what constitutes a species in this group, or 

 what is the range of specific variation, it is impossible to say whether this form 

 should be regarded as a species, or as a variety of C. carolinensis Bush. 



Cadulus Agassizii Dall. 



Plate XXVII. Fig. 12 c. 



Cadulus Agassizii Dall, Bull. M. C. Z., IX. p. 35, 1881. 



Habitat. Station 5, in 229 fms. 



No more specimens of this species have come to hand. It is very like 

 C. pandionis Verrill, but has the anterior aperture less oblique, the equator 

 more marked, the posterior part proportionally shorter and less attenuated. 

 It is also smaller than C. pandionis. The latter has about the same range as 

 C. carolinensis, but has not been found yet south of Fowey Rocks, Straits of 

 Florida, where it was collected by Dr. W. H. Rush, U. S. N. 



