Barnacles of the 6renMsT\legalasma. 365 



M. rectum, Pilsbry, in which the " auriculate " structure of 

 the base of the carina suggests the beginning of such a 

 transverse expansion as is seen in this species. 



r^ 



Megalasma (Glyptelasma) pihbryi, sp, n., holotype. 



A. Lateral view, outlines of valves as seen after partial removal of cuticle. 

 B. Basal angle of scutum, inner surface. C. Carina, inner surface. 



Megalasma (Glyptelasma) pilsbryi, sp. n. 

 (Text-figs. 1 and 2.) 



Localities.— Lat. 9° 15' S., long. 115° 10' E., 800-1500 

 fath. 1 specimen. 



Lat. 10° 45' S., long. 120° 50' E., 700 fath. 2 specimens 

 (including holotype). 



Lat. 11° 0' S., long. 121° 30' E., 500 fath. 1 specimen. 



