150 HALSTEAD AND SCHALL 



Field Numbers K53-5 to 12 apply to stations in Sulivan Bay, lying 

 in the lee of Bartholomew Island, which is off the eastern end of James 

 Island. The shore line is highly irregular, of black volcanic rock only 

 occasionally interrupted by white sandy beaches. Tidepools are numerous. 

 The water was relatively clear; surface temperature, 24.5°C. Because 

 of the wide variety of ecological biotypes within such a limited area, Suli- 

 van Bay was one of the most interesting and profitable stops of the trip, 

 Manta rays were abundant. Night light fishing was excellent. Fishes 

 collected were : haemulids, diodons, snappers, flyingfish, halfbeaks, parrot- 

 fishes, pomacentrids, wrasses, moray eels, blennies, and sharks. 



Field Numbers K53-13, 14, 16 and 20 represent collections taken in 

 the vicinity of Tagus Cove, off Albemarle Island. The shores are steep 

 and inaccessible, the only landing place being near a ravine at the north 

 end of the cove. The water is from 6 to 14 fms deep and is quite murky; 

 surface temperature, 20.5°C. Night light fishing was very productive, as 

 hundreds of Sphaeroides annulatus were attracted to the surface, where 

 they were speared with ease. Puffers were more plentiful than in any 

 other area visited, but limited to a single species. Also collected were: 

 wrasses, groupers, mackerels, haemulids, dolphin, barracudas, and Caulo- 

 latilus. 



Field Numbers K53-15, 17, 18 are from stations off Narborough 

 Island, about 2^ miles west of Tagus Cove. On the eastern side, the 

 shore is well populated with large marine iguanas, penguins, and flight- 

 less cormorants. The water was rather murky; temperature, 21°C. Fishes 

 collected were: wrasses, pomacentrids, groupers, and pomacanthids. 



Field Numbers K53-19, 21 are from stations off Charles Island: at 

 Post Office Bay, where a broad sandy beach is interrupted at irregular 

 intervals by rocky tidepools and the bottom, of sand and volcanic rock, 

 slopes smoothly to deep water; and in the lee of Onslow Island, lying 

 off Cormorant Point. The water was quite clear; temperature, 23°C. 

 Fishes taken were: diodons, snappers, puffers, squirrelfishes, mullets, 

 pomacentrids, haemulids, and scorpionfishes. 



MATERIALS AND METHODS 



Specimens were collected with the use of rotenone, spear, dynamite, 

 or dipnet. Soon after collection, the smaller ones were sorted, labeled, 

 placed in plastic bags according to the station where they were taken, and 

 placed in a deep freeze unit. From the larger specimens samples were 

 taken in the field of the muscle, liver, intestines, and gonads. An identifi- 

 cation number was assigned to the tissue sample and a duplicate number 



