294 REPORT ON ALBATROSS MOLLUSCA DALL. " 



Dentaliimi callithrix Dall. 



D. callithrix Dall, Ball. Mns. Comp. Zool., xvm., p. 427, PI. xxvn., Fig. 10, June, 

 1889. 

 This species was collected at Station 2751, south of the island of St. 

 Christopher or St. Kitts, in the West Iudies, in 687 fathoms, ooze; tem- 

 perature at the bottom 39°.9 F.; aud at Station 2754, east from the 

 island of Tobago, in 880 fathoms, ooze; temperature 37°.9. It has also 

 been found among: the dredgings made at Rio Janeiro many years ago 

 by the Wilkes Exploring Expedition. 



Dentalium ensiculus Jeffreys. 



D. ensiculus (Jeffreys, 1877) Dall, Bull. Mus. Comp. Zool., xvm., p. 428, PI. xxvn. 



Fig. 12, 1889. 

 D. didymum Watson, 1879. 

 D. sigsbeeanum Dall, 1861. 



Collected at Station 2644, off Cape Florida, in 193 fathoms, sand; tem- 

 perature 43°.4. 



This species is common to the north Atlantic, but so far has not been 

 found south of the Antilles. 



Dentalium ceras Watson. 



Collected at U. S. Fish Commission Station 2763, in 671 fathoms, 

 globigerina ooze, temperature 37°. 9, 240 miles east from Eio Janeiro. 

 This locality helps to bridge the gap between the Pacific station west 

 of Valparaiso, where the Challenger found it, and the stations in the 

 Antilles and the Gulf of Mexico, where it was obtained by the Blake. 



Dentalium candidum Jeffreys. 



This species was found with the preceding and also at Station 2760, 

 90 miles north from Ceara, Brazil, in 1,019 fathoms ; temperature 39°.4 F. 

 It was obtained by Jeffreys in the northeast Atlantic, in 410 to 1,750 fath- 

 oms, and on the northeast coast of the United States, on the Carolina 

 coast and northward, by the U. S. Fish Commission, in 843 to 1,309 fath- 

 oms. The present localities greatly extend its southward range. 



This is the D. solidum of Verrill, and I have received it from a corre- 

 spondent in Europe, under the name of 1). ergastricum Fischer, from deep 

 water in the Bay of Biscay. 



Dentalium perlongum Dall. 



Collected at Station 2751, off St. Kitts, West Indies, in 687 fathoms, 

 ooze, temperature 39°.9 ; at Station 2754, east from Tobago, in 880 fath- 

 oms, temperature 37°.9 ; and at Station 2760, 90 miles north of Ceara, 

 Brazil, in 1,012 fathoms, coral, temperature 39°.4 F. It ranges north- 

 ward to the Carolina coast. 



