IO2 W. C. ALLEE, 



In order to check up on this data I asked Mr. G. M. Gray for a 

 list of the forms that had proven difficult to obtain during the 

 1918 season. I did not ask him to refer to his records because 

 only those animals that had been so difficult to obtain that they 

 were well fixed in his mind were wanted. This group of animals 

 with their distribution is given as Table IV. An inspection of 

 the table will show that in each case the animals are southern 

 ranging forms with Woods Hole near the northern limit of their 



range. 



TABLE IV. 



Listing the animals which Mr. G. M. Gray found to be especially difficult to obtain 

 in the summer of 1918 as compared with his experience in other years. 



Sagartia lucioe (Ver.) Fla. Mass. Bay. 



Astrangia dan<z (Ag.) Fla. Cape Cod. 



Arbacia punctulata (Gray) Yucutan Cape Cod. 



Hippo, talpoida (Say) Fla. Cape Cod. 



Callinectes sapidus (Rath) La. Cape Cod. 



Styela partita (Stimp.) N. C. Mass. Bay. 



Perophora viridis (Ver.) Bermuda Vineyard Sound. 



Arbacia punctulata had been particularly abundant in 1917. 

 Small specimens were taken from rocks at Kettle Cove, at the 

 Buzzard Bay entrance to Northwest Gutter, near Quissett and 

 at North Falmouth. In all these places they came up almost to 

 the low tide limit. In the deeper water they had again appeared 

 in numbers on what the collecting crew called "the old Arbacia 

 grounds" off Nobska Light. In 1918 none were taken by the 

 class except in dredging in Vineyard Sound off Tarpaulin Cove, 

 and then only a few small individuals. In fact during all the 

 summer, in place of the usual abundance of large specimens, 

 Mr. Gray was able to furnish only relatively few small Arbacia. 



Sagartia lucice, usually the most abundant actinian in the 

 Woods Hole region, was almost wanting at the beginning of the 

 summer in 1918. In only one place visited throughout the sum- 

 mer was this small anemone present in anything like its usual 

 abundance. This was at Kettle Cove, where in the protected 

 tide pools, the rocks were covered in about their normal fashion. 

 On the exposed parts of Kettle Cove, as everywhere else, the 

 rocks were practically bare. Pratt gives the distribution of this 

 species as Long Island Sound to Massachusetts Bay and further 



