THE BURROWING BARNACLES (CIRRIPEDIA: ACROTHORACICA) 129 

 Trypetesa caveata Tomlinson, 1963, page 164 



This is a fossil species, which is described with the other fossil 

 species on page 141. 



Trypetesa habei Utinomi, 1962, page 399 



Figure 35 



Diagnosis: Trypetesa with orificial knob and two palps; aperture 

 devoid of well-developed teeth or comb collar; shape of ovarian disk 

 highly variable, but tending to extend posteriorly rather than to 

 either side; male with penis sheath. 



Figure 35. — Trypetesa habei Utinomi, 1962: a, female from Monilea from Seto, Japan; 

 b, female from Susami Bay, showing position of male; c, male from female of b; d, e, 

 mature males from Tedus conus from Seto — d shows antennules; /, mature male from 

 Susami Bay, antennules broken off. 



