MARINE ISOPODS FROM THE PHILIPPINE ISLANDS. 



29 



Cymodoce tripartita, sp. nov. 



This species is also close to Cymodoce tuberculosa Stebbing. The first antennae 

 agree with that species in having a row of five spines on the first article of the peduncle. 

 There is also an additional spine on the lower margin. The anterior margin of the 

 head is also produced in two small points in the middle 

 as in that species, and the first abdominal segment 

 also has the two backward -projecting processes on the 

 posterior portion. It differs, however, from that species 

 in having three teeth on the epistome instead of two 

 and in having the posterior portion of the abdomen 

 different from that species. The median lobe of the 

 posterior margin of the abdomen extends beyond the 

 lateral teeth and is not separated from them by a 

 notch on either side. The median lobe also terminates 

 in a small spine. The median portion of the dorsal 

 surface of the abdomen is raised above the lateral por- 

 tions in a triangular elevation extending backward from 

 the median terminal lobe. The entire surface of the 

 abdomen is covered with small tubercles, and two larger 

 ones are placed, one on either side, just below the pos- 

 terior projections of the anterior portion of the abdomen. 

 There are also two larger tubercles on the inner branch 

 of the uropoda, one below the other. Fig. 27 '.—Cymodoce tripartita. 



Two males and two females of this species were Male " x16 ' 



collected at Jolo, from the interior of a pearl oyster. Type specimen, catalogue 

 number 40919, United States National Museum. 



Genus CILICiEOPSIS Hansen. 

 Cilicseopsis whiteleggei (Stebbing). 



Cilicxa whiteleggei Stebbing, Ceylon Pearl Oyster Fisheries Report, 1905, pt. iv, p. 39-40, pi. ix 



(A),(B). 



Locality: Station 5158, Tinakta Island (N.), N. 89° W., 1.90 mi. (5° 12' 00" N., 

 119° 54' 30" E.), at a depth of 12 fathoms, in coarse sand and shells. One male. 

 Stebbing's specimens were from Cheval Paar, Gulf of Manaar; off Galle; off Foul 

 Point; Trincomalee, station xxiv. 



Genus CILICJEA Leach. 



Cilicaea latreillii Leach. 



Cilicxa latreillii Leach, Diet. Sci Nat., 1818, xn, p. 342. Desmarest, Consid. gen. Crust., 1825, p. 296, 



pi. 48, fig. 3. Guerin, Ieonogr. Regne Animal, 1836, pi. 30, fig. 4. 

 Nsesea latreillii Milne Edwards, Hist. Nat. Crust., 1840, m, p. 218. 



Cilicxa crassicaudata Baswell, Proc. Linn. Soc. N. S. Wales, 1881, v, p. 475, pi. 17, fig. 3. 

 Cilicxa latreillii Miers, Zool. Coll. Alert, 1884, p. 308. 



Cilicxa crassicaudata Whitelegge, Mem. Austral. Mus., 1902, iv, p. 273, fig. 35. 



Cilicxa latreillii Stebbing, Ceylon Pearl Oyster Fisheries Report, 1905, iv, p. 36-39, pi. in (b), vm. 



Localities: Station 5169, Sibitu Island (S. E.), N. 38° E., 8 mi. (4° 32' 15" N., 

 119° 22' 45" E.), at a depth of 10 fathoms, in coral and sand. Station 5174, Jolo 

 Light, E., 2.60 mi. (6°03 / 45"N., 120° 57' 00" E.), at a depth of 20 fathoms, in coarse 

 sand. Station 5141, Jolo Light, S. 17° E., 5.50 mi. (6° 09' 00" N., 120° 58 / 00" E.), 

 at a depth of 29 fathoms, in coral and sand. Two males and two young specimens. 



