512 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.xxiii. 



e. Body two and two-thirds longer than broad. Second pair of antennae 

 reach the posterior margin of fourth thoracic segment. Outer branch 

 of uropoda with apex bifid. Color, light brown. 



35. Cirolnna parva Hansen. 

 <"'. Body three and two-thirds longer than broad. Second pair of antennae 

 reach the posterior margin f)f third thoracic segment. Outer branch 

 of uropoda with apex not bifid. Color, white. 



36. Cirolana alhida, new species. 



25. CIROLANA SPHiEROMIFORMIS Hansen. 



Cirolana splurrujiii/ormis Hansen, Vidensk. Selsk. Skr. (6), V, 1890, pp. 351-353, 

 pi. IV, figs. 3-3g. 



Habitat. — St. Thomas. West Indies. 



26. CIROLANA MAYANA Ives. 



Cirolana maijana Ives, Proc. Phil. Acad. Nat. Sciences, 1891, pp. 186-187, pi. vi, 

 figs. 3-10. 



Hahitat. — Coast of Yucatan; Santa Marta, U. S. Columbia. 



27. CIROLANA MINUTA Hansen. 



Cirolana minuta Hansen, Vidensk. Selsk. Skr. (6), V, p}). 347, 348, pi. in, figs. 

 5-5d; pi. IV, figs. 1-lf, 1890. 



Habitat. — St. Thomas, West Indies. 



28. CIROLANA VIRGINIANA Richardson. 



Cirolana virginiana Richardson, Am. Nat., XXXIV, p. 216, 1900. 

 Body not quite twice as long- as broad, oval, thickset. Head 

 transverse, with indications of four small tubercles, two on the ante- 

 rior portion, between the eyes, and two on 

 the posterior portion. Eyes large, lateral. 

 First pair of antennte long, nearly as long 

 as the second pair, reaching the posterior 

 margin of the tirst thoracic segment; fla- 

 gellum twelve jointed. Second pair of 

 antennaB extend to the middle of the third 

 thoracic segment; fiagellum eighteen jointed. 

 First thoracic segment one and a half 



Fig. .5.— Abdomen of Cirolana . , i^ j_i . 1 



virginiana. times longer than any or the other segments. 



Following segments of equal length. 



First abdominal segment almost entirely concealed by last thoracic 

 segment. Four succeeding segments of equal length. Terminal seg- 

 ment very short and narrow, not longer than the four abdominal 

 segments taken together, posteriorly rounded and crenulate. Both 

 branches of the uropoda crenulate. Inner branch broad and equalling 

 in length the terminal segment. Outer branch narrower and a little 

 shorter than inner branch. 



Abdomen minutely granulose. 



