64 BULLETIN : MUSEUM OF COMPAIIATIVE ZOOLOGY. 



From Whale Cay we crossed over to Mastic Point on Andros. As 

 soon as we got into deep water after leaving the bank we began to en- 

 counter again flying lishes, not one of which we had seen while steaming 

 on the outer shallow part of the bank. 



THE LITTLE BAHAMA BANK. 



Plate I. ; Plate X. Fig. 1. 



The Little Bahama Bank is dumbbell-shaped, one of its shanks running 

 in a northwesterly direction, the other irregularly north and south. The 

 northern edge of the bank from Walker Cay Channel to Elbow Cay, and 

 the eastern edge from that point to Cheroki Sound, is skirted by numer- 

 ous cays running nearly parallel with the 100 fathom line, at a distance 

 varying from one to four miles. The rest of the southeastern edge of 

 the bank is flanked by the high clifls of Great Abaco as far as Hole in 

 the Wall ; from that point the shore trends to the southwest, and extends 

 northwest from Southwest Point to Eocky Point. Of the outer line of 

 eastern cays the principal ones are Walker Cay, the Double Breasted 

 Cays, Stranger, Carter, Fish, Pensacola, Spanish, Munjack, Green Tur- 

 tle, Great Guana, Man-of-War, Elbow, Tilloo, and Lynj'ard Cays. A 

 broken line of reef extends from Cheroki Sound along the eastern edge 

 of the bank to Matanilla Reef. This reef becomes specially prominent 

 north of Elbow Cay, leaving only here and there a passage through the 

 reef for small boats to gain admittance into the large sheet of water, 

 from two to six miles wide, and twelve feet deep, which separates the 

 outer cays from the eastern shores of Great and Little Abaco. Large 

 craft can enter this inner sheet of water through Man-of-War or Whale 

 Channel Ca}'. 



As far as we saw the outer line of cays from the Stranger Cays to 

 Lynyard Cay, they are all low, generally bare, Green Turtle .Cay being 

 an exception. They probably represent the outer line of peolian rock 

 hills which once formed the eastern shore of Great Abaco, but which, 

 owing to the subsidence and to the wearing action of the sea, has sepa- 

 rated these hills into numerous islets and formed the wide and navigable 

 channel intervening between them and Great and Little Abaco. 



In tlie vicinity of Little Harbor the outer range of a'olian hills is still 

 connected with the main island, Ocean Hill and the adjoining promon- 



