1905.1 



CAPE VERDE MARINE FAUNA. 



175 



lee of Quail Island* is completely sheltered at all seasons and 

 gradually slopes into the shallow channel. Consequently, this 

 area was very rich, large holothurians being seen here for the 

 first time, and many other fresh forms were added to the 

 collections. At the same time, it has since become clear that 

 the fauna is really identical from north to south, and that the 

 Guinea current is too far away to affect any Islands of the 

 group. 



Tunny- fishing with rod and line is carried on at Piaya. The 

 boats engaged in this rather exciting work are little tubs holding- 

 two men, but which were made to carry three rowers and a 

 passenger in my dredging-expeditions. Although it is said that 

 a big tunny may tow a boat seven oi' eight miles out to sea, the 



Text-fig. 24. 



200 

 ell l^eef 



£^^^ Sand Jlcad 



lOO 



BONAXTSTA 



azeii ihll Bluff 





Map of Bonavista. 



boats are very roughly constructed, leaks being discovered and 

 roughly caulked every day. On one occasion, when I pointed out a 

 bubbling spring in the bottom of the boat, oiie of the crew un- 

 concernedly handed over a portion of his trousers with which to 

 plug the leak ! 



Except for the small sheltered area afforded by Quail Island, 

 the shores and bottom of Porto Praya are so like St. Vincent that 

 I took the opportunity of returning there by Portuguese mail, 



* This islet is memorable, since Davwin made collections on its shores during the 

 voyage of the ' Beagle.' 



Proc. Zool. See— 1905, Vol, I, No. XII. 12 



