552 PROCEEDINGS OF TEE NATIONAL MUSEUM. vol.50. 



PHALANGIPUS RETUSUS, new species. 



f Egeria longipes Adams and White, Zool. Toy. Samarang. Crust., 1848, p. 7 

 (Zebu). 



Type-localitij. — Tawi Tawi Group, Sulu Archipelago: Tinatka 

 Island (N.), S. 80° AV., 3.3 miles; lat. 5° 12' 30" N.; long. 119° 55' 

 60" E.; 18 fathoms; fne. S.; Feb. 21, 1908; station 5157, Albatross. 



Holotype.—U2i\Q. Cat. No. 48222, U.S.N.M. 



Measurements. — Length of carapace on median line, 24; length of 

 horns, .7; width of carapace, 20.8; length of cheliped, 45.7. 



Spines of carapace stout and blunt, those on median line subtrun- 

 cate. Margin of preorbital hood sinuous, the anterior spine and the 

 posterior denticle equally produced. Eostral horns blunt, widely 

 separated, outer margins very slightly divergent. Superior tooth of 

 orbital margin broad, subtruncate, a U-shaped notch on either side; 

 inferior tooth narrow-triangidar, subacute, notches U-shaped. Lat- 

 eral spine of basal antennal segment prominent, directed forward, 

 outward and downward. Pterygostomian prominence a large, flat, 

 rounded lobe, followed posteriorly by a tubercle. A thick, rounded 

 plate projects horizontally from the first abdominal segment. Each 

 segment of the sternum is furnished with tubercles, and near the base 

 of the chelipeds there is a long, slender, conical, blunt spine. 



The merus of the cheliped is slenderer than that of the first ambu- 

 latory leg, while the manus is stouter and increases steadily in width 

 to the distal end. , The fingers meet and are finely dentate for their 

 distal three-fifths; the basal two-fifths gape, and the dactylus is 

 armed with one broad tooth. The ambulatory legs are all broken, but 

 those of the first j^air are estimated at about six times the length of 

 the carapace. 



Relationships. — This species differs from all others in the large 

 rounded pterygostomian lobe. In the blunt-pointed spines of the 

 carapace it approaches P. herhstii, which is distinguished by the 

 characters of the orbit. The manus of the male is intermediate be- 

 tween the filiform type of arachnoides ^ and -filifortnis and the much 

 swollen manus of herbstii; it is in fact near investigatoris - in shape 

 but much shorter and slightly compressed and smooth. 



Su-bfamily SCITIZOT»IIRYSI]Sr^^. 



MAJA SULUENSIS, ne^r species. 



Type-locality. — Tawi Tawi Group, Sulu Archipelago : Observa- 

 tion Island, N. 70° W., 6.4 miles; lat. 4° 58'20"N.; long. 119° 50' 30" 

 E.; 9 fathoms; Co.; Feb. 24, 1908; station 5165, Albatross. 



Ilolotype.— Female. Cat. No. 48224, U.S.N.M. 



1 Egeria arachnoides Latrellle, Tabl. Encyc. Mdth., pt. 24, 1818, pi. 281, flg. 1. 

 "Egeria investigatoris Alcock, Jour. Asiat. Soc. Bengal, vol. 64, 1895, p. 225. 



