PILUMNIDAE. 51 



In the two larger specimens, the outer angle of the basal antennal joint 

 falls short considerably of the end of the inner suborbital tooth, while in 

 the two smaller specimens that angle reaches the end of the tooth. 



Cyclodius ornatus Dana. 



PI. 5, Fig. 5; PI. 7, Fig. 8. 



Cyclodius ornatus Dana, Proc. Acad. Nat. Sci. Phil., 1852, 80; Crust. U. S. Expl. 



Exped., 1852, 1, 223; atlas, 1855, pi. 12, figs. 11 a-<j. 

 Chlorodopsis (Cyclodius) ornata Alcock, 1898, 67, 171. 



Fakarava Id., Paumotus ; outer reef; Oct. 12, 1899 ; 1 9 immature. 



Papeete ; shore ; Nov. 9, 1899 ; 1 o* juv. 



Tari-Tari Id.; shore, reef; Jan. 6, 1900 ; 1 9 immature, 1 <? juv. 



The largest specimens measure as follows : — 



9, Tari-Tari, length 6.7 mm., width 8.8 mm., proportion 1 : 1.31. 



9, Fakarava, length 6 mm., width 7-7 mm., proportion 1 : 1.28. 



Lateral teeth N, T, and S are long, slender, and alike ; tooth E is similar, 

 but smaller in three specimens; in the young o* from Tari-Tari (4 mm. wide) 

 tooth E is not spiniform. Subdivisions of gastric region well marked, except 

 in the last-mentioned specimen. Each middle lobe of the front has 8 or 

 10 denticles, each lateral lobe 3 or 4. 



Fig. 11/ of Dana represents the abdomen of a 9. 



Cyclodius gracilis Dana. 

 PI. 1, Fig 10 ; PI. 7, Fig. 7. 



Cyclodius gracilis Dana, Proc. Acad. Nat. Sci. Phil., 1852, 80 ; Crust. U. S. Expl. Exped., 

 1S52, 1, 224 ; atlas, 1855, pi. 13, figs. 12 a aud b. 



Funafuti; reef; Dec. 24, 1899; 2 <?, 1 9, all young. 



The largest specimen, the 9, measures 3.8 x 5.5 mm., or a proportion 

 of 1 : 1.44. This is a greater width than that given by Dana in the text, 

 but corresponds to his figure. While strongly resembling C. ornatus, it is 

 less deeply areolated (specimens of nearly equal size compared), the front 

 as a whole is less prominent, its margin more finely denticulated, its outer 

 lobules are smaller. 



