MARINE ISOPODS FROM THE PHILIPPINE ISLANDS. 



41 



Parapenaeon bonnieri (Nobili). 



Orbione bonnieri Nobili, Atti R. Accad. Sc. Torino, vol. 41, 1906, p. 1102-1104, fig. 2. 



Locality: Station 5165, Observation Island, N. 70° W., 6.40 mi. (4° 58' 20" N.. 

 119° 50' 30" E.), at a depth of 9 fathoms, in coral; one specimen. Nobili's speci- 

 men was from Singapore. 



In the Albatross specimen the pleural lamellse of the abdominal segments of the 

 female are not quite as long as those of Nobili's specimen. Nobili's figure can not be 

 correct, because the uropoda appear as lamellae of the sixth segment. 



Family DAJID^E. 



Genus HOLOPHRYXUS Richardson. 



Holophryxus giardi Richardson. 



Holophryxus giardi Richardson, Proc. U. S. Nat. Mus., xxxru, 1908, p. 690-692; xxxvn, 1909, p. 123. 



Locality: One specimen, a female, from Station 5185, Lusaran Light, N. 23° E., 

 25.50 mi. (10° 05' 45" N., 122° 18" 30" E.), at a depth of 638 fathoms, in green mud. 

 The type specimen came from Toporkov Island, Harbor of Nikolski, Bering Island. 



Genus ZONQPHRYXUS Richardson. 



Zonophryxus trilobus, sp. no v. 



This species is very close to Zonophryxus retrodens Richardson, but has four instead 

 of three small indentations on the lateral border of the anterior half of the body. 

 The border surrounding the body on the 

 ventral side begins to converge about the 

 middle toward the posterior portion, where 

 it becomes very narrowly rounded. There 

 are four teeth on either side of the median 

 line on the posterior border, which are not 

 visible in a dorsal view. On the dorsal sur- 

 face are six indistinct lines indicating the 

 coalesced thoracic segments. 



Only one specimen, a female, was col- 

 lected, 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 globigerina. Host unknown. 

 Type, catalogue number 40927, United States National Museum. 



a b 

 Fig. 39. — Zonophryxus trilobus. a, Dorsal 

 view; b, ventral view. X 2}. 



ONISCOIDEA. 



Family LIGYDIM. 

 Genus LIGYDA Rannesque. 



Ligyda exotica (Roux). 



Ligia exotica Roux, Crust. Medit., 1828, p. 3, pi. xm, fig. 9. 



Ligia gaudichaudii H. Milne Edwards, Hist. Nat. Crust., m, 1840, p. 157. Dana, IT. S. Expl. Exp., 



Crust., xrv, 1853, p. 741, pi. xlix, fig. 6a-h. 

 Ligia exotica Budde-Lund, Crust. Isop. Terrestria, 1885, p. 266-268. Richardson, Proc. U. S. Nat. 



Mus., xxvn, 1904, p. 49. 

 Ligyda exotica Richardson, Proc. U. S. Nat. Mus., xxxvn, 1909, p. 125-126. 



Locality: Kowloon, China, shore; three specimens. 



