no. 1883. A NEW ISOPOD FROM JAPAN— RICHARDSON. 



29 



Cleantis planicauda Benedict, Cleantis linearis Dana, Cleantis granulosa 

 Heller, and Cleantis occidentalis Kichardson also have the narrow body 

 and short fourth pair of legs. The tube-dwelling habit is perhaps 

 common to all these species. 



Owing to the differences in the shape of the body, which is broader 

 and more flattened, and in the character of the legs, and to the fact 

 that the abdomen is composed of but two segments, Cleantis isopus 

 Miers should not be retained in this genus. I suggest a new genus 

 for its reception, with the name Cleantiella. 



LIST OF REFERENCES. 



Miers, E. J. Revision of the Idoteidse, a Family of Sessile-Eyed Crustacea. Journ. 



Linn. Soc. London, Zool., vol. 16, 1883. 

 Richardson, Harriet. A Monograph on the Isopods of North America. Bull. IT. S. 



Nat. Mus., No. 54, 1905. Washington. 

 Richardson, Harriet. Isopods collected in the northwest Pacific by the U. S. 



Bureau of Fisheries steamer Albatross in 1906. Proc. U. S. Nat. Mus., vol. 37, 



1909, pp. 75-129. Washington. 

 Thielemann, Martin. Beitrage zur Kenntnis der Isopodenfauna Ostasiens, in, Bei- 

 trage zur Naturgeschichte Ostasiens. Herausgegeben von Dr. F. Doflein. Abh. 



der math.-phys. Klasse der k. bayer. Akademie der Wissenschaften, II. Suppl., 



vol. 3. 1910. Munchen. 



