DESCRIPTION OF GENERA AND SPECIES. 



Class CEPHALOPHORA, Blain., 1816. 



Sub-class SCAPHOPODA, Bronn, 1862. 



Order SOLENOCONCHIA, 1 Lacaze-Duthiers, 1857. 



Family Dentaliacea, Romer, 1836. 



Genera. 1. Dentalium, Linne. 2. Siphodentalium, G. 0. Sars. 3. Cadulus, Philippi. 



1. Dentalium, Linne, 1758. 

 Species. 



1. Dentalium eapillosum, Jeffr. 10. Dentalium longitrorsum, Reeve. 



2. Dentalium mgeum, Wats. 11. Dentalium compressum, Wats. 



3. Dentalium amphialum, Wats. 12. Dentalium suLterfissum, Jeffr. 



4. Dentalium keras, Wats. 13. Dentalium. didymum, Wats. 



5. Dentalium diarrhox, Wats. 1 4. Dentalium yokohamense, Wats. 



6. Dentalium, entalis, Linne. 15. Dentalium dentalis, Linne. 



7. Dentalium leptoskeles, Wats. 16. Dentalium javanum, Sow. 



8. Dentalium circumcindum, Wats. 17. Dentalium ensiculus, Jeffr. 



9. Dentalium aeutissimum, Wats. 18. Dentalium tornatum, Wats. 



1. Dentalium eapillosum, Jeffreys (PI. I. fig. 1). 



Dentalium eapillosum, Jeffreys, " Valorous " Report, Proc. Roy. Soc.,vol. xxv. No. 173, 1876, p. 191. 



No. in list 26. 

 „ „ Jeffreys, "Valorous "Moll., Ann. and Mag. Nat. Hist., 1877, ser. 4, vol. xix. p. 153. 



,, „ Watson, "Challenger" Moll., Prelim. Report, pt. 2, Journ. Linn. Soc. Lond., 



vol. xiv. p. 508. 

 „ „ Jeffreys, "Lightning" and "Porcupine" Moll., Proc. Zool. Soc. Lond., 1882, 



p. 658, No. 4, pi. xlix. fig. 1. 



Station II. January 13, 1873. Lat. 38° 10' K, long. 9° 14' W. Setubal. 470 

 fathoms. Green mud. 



(?) Station 24. March 25, 1873. Lat, 18° 38' 30" N., long. 65° 5' 30" W. Off 

 Culebra Island, West Indies. 390 fathoms. Pteropod ooze. 



Station 73. June 30, 1873. Lat. 38° 30' N„ long. 31° 14' W. W. of Azores. 1000 

 fathoms. Pteropod ooze. Bottom temperature, 39° - 4. 



Station 78. July 10, 1873. Lat. 37° 26' N., long. 25° 13' W. Off San Miguel, 

 Azores. 1000 fathoms. Volcanic mud. 



1 Lacaze-Duthiers gives this only in the form of " Solehoconques," leaving others to put it into Latin for 

 themselves : it appears accordingly as Solennconchia and Solenoconclioe. Of these the former has been pre- 

 ferred here as more in analogy with the other names of orders. 



(zool. chall. exp.— part xlii. — 1885.) Tt 1 



