ON SOME SOUTH PACIFIC NEMERTINES COLLECTED BY 



DR WILLEY. 



By R. C. PUNNETT, B.A. 

 With Plates LVII.— LXI. 



The Nemertines collected by Dr Willey contain representatives of all the four 

 great classes except the Mesonemertini. Six new species are here described and 

 mention has been made of at least two other species, which are also probably new. 

 In addition the collection contains fragments of several others, but as the anterior 

 end was not preserved in these cases it has appeared wiser to neglect them. A glance 

 at the map which forms the last plate of Burger's monograph renders it evident 

 that the Malay archipelago is the headquarters of the genus Eapulia. Consequently 

 it is not surprising to find that five out of the twelve species mentioned below belong 

 to this genus. The genus Drepanophorus also has been previously shewn by Burger 

 to form a conspicuous portion of the Nemertine fauna of this part of the world. 

 Quite otherwise is the case of Carinesta orientalis which enjoys the distinction of 

 being the only Protonemertine yet recorded from any place outside the Atlantic and 

 Mediterranean areas. Cnrinella has been found at Magelhaen's Strait and at the 

 Cape of Good Hope, but with these two exceptions no member of the class is known 

 to occur south of the Equator. Its structural peculiarities seem to warrant the 

 foundation of the new genus; and I may here take the opportunity of thanking 

 Dr Willey for the chance of examining such an interesting form. 



St Andrews, 0<jt. 1899. 



PROTONEMER TINP. 



Genus. Carinesta, nov. gen. 



Head elongated, not spatulate as in the genus Carinella. No cerebral slits present. 



The excretory system is simple and is situated some way behind the head. There 



is no diagonal muscle layer between the longitudinal and circular layers. No sense 

 organ near excretory pore. 



' The classification followed is that given in Biirger's Monograph. 



