312 Ruth D. Turner 



Notes. The lot collected by the Atlantis at station 2996 greatly extends the depth 

 at which this species is known to Uve. Henderson's subspecies flavum and tenax 

 appear to be the only variants with no geographic significance, for it has been 

 possible to find gradients between these and the typical form. 



Records. FLORIDA: 3^ miles N.E. of Pacific Reef, Key Largo in 66 fathoms (L. A. Burry). 

 CUBA: Atlantis, station 2996, off Bahia de Cardenas, Matanzas (N. Lat. 23" 22'; W. Long. 81° 050 

 in 470-665 fathoms; Atlantis, station 2963, off Bahia de Cochinos, Las Villas (N. Lat. 22° 07'; 

 W. Long. 81° 08') in 180-190 fathoms. 



Dentalium (Antalis) taphrium Dall 

 Dentalium taphrium Dall 1889, Bull. Mus. Comp. Zool. 18, p. 422; Henderson 1920, Bull. 

 U.S. Nat. Mus. No. Ill, p. 53, pi. 7, fig. 8. 



Notes. This is a very characteristic species. It generally lives in depths from about 

 20 to 120 fathoms. The specimen from Yucatan Straits in 640 fathoms was dead at 

 the time it was collected, and it does not necessarily follow that the species hves at 

 such depths. 



Records. MEXICO: Blake station, Yucatan Straits in 640 fathoms. FLORIDA: off Beacon D, 

 Key Largo in 38-100 fathoms (6 lots); off Carysfort Light, Key Largo in 100-117 fathoms (2 lots); 

 off Molasses Reef, Ley Largo in 66-75 fathoms (2 lots) ; 3 miles S.E. of Sombrero Light, Marathon 

 in 58 fathoms (all L. A. Burry). 



Dentalium (Antalis) bartletti Henderson 

 Dentalium {Antalis) bartletti Henderson 1920, Bull. U.S. Nat. Mus. No. 1 1 1, p. 55, pi. 8, figs. 2, 7. 



Notes. Specimens taken by the Atlantis off Puerto Sagua la Grande and Puerto de 

 Tanamo were 66 mm and 74-5 mm long respectively, the latter being 19-5 mm longer 

 than Henderson's largest specimen. 



Records. CUBA: Atlantis, station 2991, (N. Lat. 23° 21'; W. Long. 80° 23') in 475 fathoms; 

 Atlantis, station 2988, (N. Lat. 23° 15'; W. Long. 79° 57') in 380 fathoms; Atlantis, station 2989 

 (N. Lat. 23° 10'; W. Long. 80° 04') in 360 fathoms,— All off Puerto Sagua la Grande, Las Villas; 

 Atlantis, station 3370, off Puerto de Tanamo, Oriente, (N. Lat. 20° 47'; W. Long. 75° 11') in 450 

 fathoms; Blake, station, off Bahia Honda, Pinar del Rio in 418 fathoms. BRITISH HONDURAS: 

 Blake, station 18, off Belize (N. Lat. 18° 08'; W. Long. 87° 16') in 600 fathoms. LESSER AN- 

 TILLES: Blake, station 265, off Grenada (N. Lat. 12° 03'; W. Long. 61° 49') in 576 fathoms. 



Dentalium (Fissidentalium) meridionale verrilli Henderson 

 Dentalium solidum Verrill 1884, Trans. Connecticut Acad. Arts and Sci. 6, p. 215, pi. 44, fig. 16 



(non D. solidum Hutton 1873). 



Dentalium {Fissidentalium) meridionale verrilli Henderson 1920, Bull. U.S. Nat. Mus. No. Ill, 



p. 62, pl. 9, fig. 3, 



Notes. A number of lots of this rather common northern species were collected 

 by the Atlantis while working along the continental slope from New Jersey to Virginia. 

 This is a large, strong species and one of the few that are readily obtained in large 

 numbers by a dredge, and, at the same time, are not broken in the process. This 

 fact probably accounts for its greater abundance in collections, and therefore the 

 belief that it is common, though perhaps it is no more so than many other species. 



Records. NEW JERSEY: Atlantis, 4 stations, off Cape May in 935-1050 fathoms; Atlantis, 

 2 stations, olT Little Egg Harbor in 820 and 935 fathoms; Atlantis, 2 stations, off Point Pleasant in 

 1105 and 1230 fathoms; Atlantis, off Long Branch in 520 fathoms. DELAWARE: Atlantis, station 

 (N. Lat. 38° 31'; W. Long. 73° 03') in 915-975 fathoms. MARYLAND: Atlantis station, off 

 AssateagueBay(N. Lat. 39°05'; W. Long. 73° 30') in 970 fathoms. VIRGINIA: Atlantis station, 

 off Accoma (N. Lat. 37° 43'; W. Long. 73° 40') in 1105 fathoms. 



