THE NAUTILUS. 79 



Oxystyla princeps Brod. Near Kukallaya, in the plantation clear- 

 ings of the Indians, along the Kukallaya river (sometimes called 

 Wounta river). Quite numerous. I have one specimen that lacks 

 the characteristic zigzag markings, being quite plain, except for the 

 dark-brown spot at the very point of the blunt apex, together with a 

 faint suggestion of some narrow brown bands on the whorls. 



Subulina octona Linn. Bluefields, under stones and beneath foli- 

 age in damp places. 



Subulina mimosarum Orb. Bluefields, Rama Key, Wounta Haul- 

 over, Kukallaya. Under stones, wood, leaves, in damp places. 



Succinea recisa Morelet. Wounta Haulover, in a puddle left by 

 the rainy season, between the sea and the lagoon and not more than 

 100 yards from either. The bottom of the pool was grass-covered. 

 Shells were clinging to a stem of cocoanut leaf, which had fallen and 

 was submerged. 25 specimens. In the dry season the spot is dry 

 and the grass dead, and the lagoon and all the water courses for miles 

 around are salty. 1 never saw this shell anywhere else except on the 

 banks of a little run in Bluefields, where they were rare. 



Melampus flavus Gmel. Man of War Keys. Large, banded 

 and unbanded specimens. 



Melampus coffea Linn. Wounta. 



Exceedingly numerous. Used as beads by Indians. The un- 

 banded variety will average larger than the banded. In March, 

 1903, I collected some of these shells at the Bluff near Blueflelds, 

 but the shells were all small, none being larger than M. lineatus say 

 of the North Atlantic. In the spring of the three years preceding 

 1903, I searched the same spot, but found none of these shells. I 

 am inclined to regard them as newcomers to Bluefield. 



Teredo sp ? Wounta Haulover and everywhere on the coast. 



Pholas campechensis Gmel. Wounta Haulover, Prinzapolka, etc. 

 Of the hundreds of valves cast up daily, I never found anything but 

 right valves. Cannot some one who knows write an article on why 

 it is that single right or left valves, as the case may be, are often 

 found, to the exclusion of the other valves ? 



Tagelus poeyii Dall. Prinzapolka. On the beach toward the 

 south from the town. Rare. Only 3 specimens. 



Periploma inequivalvis Sebum. Wounta Haulover. Right valves 

 only. 



Mactra (Mactrella} alata Spengler. Wounta Haulover, and along 



