THE BURROWING BARNACLES (CIRRIPEDIA: ACROTHORACICA) 77 



Several distinct clumps of cells are distributed around the seminal 

 vesicle and into the various lobes. One such mass is adjacent to a 

 complex yellow body which could be the standard "yellow organ" of 

 acrothoracican males. A naupliar eye is retained. The antennules were 

 obscured with debris in all specimens examined. This could be a 

 result of the secretion of an attachment cement typical of cyprids. 

 It is strange, however, that attached young males had clean anten- 

 nules while the mature males did not. 



The outer surface of the mature male is covered with rows and 

 patterns of extremely fine dots, indicated marginally in the figure. 



The size of the mature male figured is 0.34 X 0.20 mm in body size 

 (excluding one lateral lobe which was flattened for illustration pur- 

 poses). This reduction in length is typical of the maturation of males 

 in the order. No trophic structures are possessed, and it is believed 

 that after fertilization the male is expended. 



The burrow: The average dimensions of the aperture of four 

 burrows, which represent all the burrows on a mechanically selected 

 piece of coral from Puerto Rico, is 0.8 X 0.2 mm. This aperture is 

 slightly below the surface of the coral, however. Figure 16i shows the 

 apostrophe-shaped aperture proper, heavily stippled, with the sur- 

 face of the coral lightly stippled. The smoothed bevel between these 

 lines was made by the barnacle extending its mantle outward beyond 

 its normal position below the narrow neck of the aperture. The burrow 

 is slightly larger than the dimensions of the female, and no particular 

 internal undercutting or other special features were noted. 



Genus Kochlorinopsis Stubbings, 1967, page 302 



Diagnosis (emend.) : Lithoglyptidae without retractor pallii rostralis 

 muscle. Operculum straight, without spines, but with numerous bifid 

 and multipointed teeth, and hairs. No lateral bar. 



Type-species: Kochlorinopsis discoporellae Stubbings, 1967, page 

 302. 



Kochlorinopsis discoporellae Stubbings, 1967, page 302 



Figure 16 



Diagnosis: Sole species with the characteristics of the genus. 



Distribution: West Africa: Senegal, Guinea, Ivory Coast, Ghana, 

 and Gabon; in the bryozoan Discoporella umbellata and three species 

 of Cupulddria. 



The female mantle is extremely flattened, oval, light brown (al- 

 cohoUc), and about 3X2 mm. It has no flattened attachment pad. 



