THE SESSILE BARNACLES. 



309 



Local it V. 



Collector. 



NoU's. 



Yokohama, Japan. 



II. Loomis 



Japan 



Ajnikawa, Japan 



Makushima, Japan Sea. 



do... 



Albatross 

 do... 



On Hdcinniscus eufosmius 

 and TitracUta growing 

 thereon. 



On lialanns cariosus. 



On Mitclla mitrlla. 



CHTHAMALUS CHALLENGER! NIPPONENSIS, new subspecies. 



Another form of C. chalJcngeii is represented by Cat. No. ■18092. 

 The deeply eroded, conic wall is gray above, light brown near the 



Fig. S8. — Chthamalus challengeri nipponensis. scdtum and tergum. 



base, where it is sculptured with tnamj tuirrow rlhs, sometimes 

 branching. The interior is purplish hrown and whitish, with deep 



Fig. 89. — Ciitiiamali s challengeri nipponensis. a, maxilla, h, mandible, c, an ix- 

 tek.mediate segment op cirrus VI. 



furrows corresponding to external ribs, punctate in the furrows. 

 Diameter, 9 mm. 



4720°— Bull. 03—10 21 



