4 



MAEINE ISOPODS FROM THE PHILIPPINE ISLANDS. 



CYMOTHOIDEA or FLABELLIFERA. 



Family CIROLANIDyE. 

 Genus BATHYNOMUS A. Milne Edwards. 



Bathynomus doderleini Ortmann. 



Bathynomus doderleini Ortmann, Proc. Acad. Nat. Sci. Phila., 1894, p. 191-193. Bouvier, C. R. 

 Acad. Sci., vol. 132, p. 643-645. A. Milne Edwards and Bouvier, Mem. Mus. Comp. Zool., Har- 

 vard College, vol. 22, no. 2, 1902, p. 159-165, pi. 7, 8. Richardson, Proc. U. S. Nat. Mus., vol. 37, 

 1909, p. 78. 



Locality: Stations 5282, off Point Talin, Luzon; 5301, off Pratas Island, China Sea; 

 and 5348, Palawan Passage, Point Tabonan. Five specimens. Depth: 248 to 375 

 fathoms. 



Bathynomus amnis, sp. no v. 



This species is very close to Bathynomus doderleini Ortmann, « but differs in having 

 nine teeth on the posterior margin of the terminal abdominal segment instead of seven ; 



in having the inner branch of the 

 uropoda with the posterior margin 

 almost straight and the outer postla- 

 teral angle abruptly produced in an 

 acute process or tooth; in having a 

 well-marked carina on the epimera 

 of the last four segments of the 

 Fig, l.— Bathynomus affinis. Caudal segment and thorax, which is only faintly marked 

 uropoda. x |. in B. doderleini; and in the less 



conspicuous median carina of the terminal abdominal segment. 



One specimen was taken at station 5259, Caluya Island (S), S. 73° W., 12 mi. 

 (11° 57' 30" N., 121° 42' 15" E.) at a depth of 312 fathoms, in gray mud and globigerin 

 ooze. The type is catalogue number 40908, United States National Museum. 



Bathynomus propinquus, sp. nov. 



This species is close to Bathynomus giganteus A. Milne Edwards, but differs in the 

 shape of the terminal abdominal segment, the number of teeth on the posterior margin 

 being the same; in the much narrower outer branch 

 of the uropoda; in the differently shaped inner 

 branch, which is more produced at both the inner and 

 outer postlateral corners; in the longer second an- 

 tennae, which extend to the middle of the fifth thoracic 

 segment, while in B. giganteus they extend only to the 

 middle of the fourth segment; in having a carina on 

 the epimera of the last three segments of the thorax; 

 and in the differently shaped frontal lamina. 



One specimen was taken, at station 5284, off Santiago, western Luzon, at a depth 

 of 422 fathoms. The type is catalogue number 40909, United States National Museum. 



Genus CIROLANA Leach. 



Cirolana orient alis Dana. 



Cirolana orientalis Dana, U. S. Expl. Exp., Crust., xiv, 1853, p. 773, pi. LI, fig. 7 a-d. Hansen, Vi- 

 densk. Selsk. Skr. (6), naturvidenskabelig og mathematisk Afd., v, 3, 1890, p. 353-354, pi. iv, fig. 

 4-4 h. Stebbing, Willey's Zool. Results, 1901, pt. v, p. 633. 



Locality: A large number of specimens from Cataingan Bay; one specimen from 

 Papahag, Tawi Tawi; a few specimens from Papahag Island, Tawi Tawi, found on a 

 floating slice of bread; twenty specimens from San Miguel Bay. Depth: Shore. 



Fig. 2. 



■Bathynomus propinquus. 



XI. 



a Proc. Acad. Nat. Sci. Phila., 1894, p. 191-193. See also A. Milne Edwards and Bouvier, Mem. Mus. Comp. 

 Zool., Harvard College, vol. 22, no. 2, 1902, p. 159-165, pi. 7, 8. 



