538 PROCEEDINGS OF THE NATIONAL MU8EVM. vol. 50. 



low tubercles followed proximally by a large tubercle, between 

 which and the end of the merus the lower surface is hollowed out so 

 that when the cheliped is flexed there is a gape at that point. The 

 carpus has three blunt, longitudinal ridges, the uppermost one most 

 prominent and proximally produced and angled. Manus smooth, 

 somewhat compressed, upper and lower margins convex. Fingers 

 deflexed, pointed, prehensile edges gaping in their basal three-fifths 

 and roughened with irregular crenulations; two pits on the outer 

 surface of each, one at the base, one near the middle. 



Legs subcylindrical, unarmed; dact3di slender, moderately curved, 

 horny tips light amber-colored. 



Sternum and abdomen smooth, wider than in A. smlthii.^ 

 Relationship. — The only other species of the genus is ..4. srrhlthll 

 M'Leay,^ from Natal, which is of large size and much rougher and 

 has two branchial teeth or spines. 



PUGETTIA MINDANAOENSIS, new species. 



Type-locality. — Off Northern Mindanao: Tagolo Light, S. 75° W., 

 12.5 miles; lat. 8° 47' 15" N.; long. 123° 35' 00" E.; 162 fathoms- 

 S.; temperature, 54.5° F.; Aug. 20, 1909; station 5543, Albatross. 



EolofT/pe.—Femsde. Cat. No. 48208, U.S.N.M. 



Measurements. — Length of carapace on median line, 11.3; of ros- 

 tral horns, 3.6 ; width of carapace without spines, 7.6 mm. 



Regions of carapace for the most part smoothly rounded; a dis- 

 tinct areola tipped with a tubercle at the inner angle of the branchial 

 region; a curved areola either side of the cardiac region; branchial 

 spine of moderate size, conical, sharp, pointing directly outward; 

 hepatic spine small, conical, sharp, pointing a little upward and a 

 little forward; intestinal region produced backward in a conical 

 protuberance which overhangs the posterior margin; a tubercle on 

 the anterior part of the subbranchial region, and a row of three 

 tubercles on the pterygostomian region. Preorbital hood ending an- 

 teriorly in a short acute tooth; postocular cup high and very con- 

 cave. Horns horizontal, moderately divergent, acuminate. Basal 

 segment of antenna with outer margin nearly straight, a small, sharp 

 tooth at anterior angle, pointing obliquely outward and forward. 



Cheliped very little stouter than legs, as long as carapace and one- 

 third of rostrum; palm a little swollen, its upper length about one 

 and three-fourths times its height and not much greater than length 

 of dactylus. First ambulatory leg exceeding cheliped by length of 

 dactylus and three-fourths of propodus. 



1 Soe Krausf5, Sfidafrik. Crust., 1843, pi. .3, fi.a;. 4c. 



2 In Smith, nius. Zool. S. Africa, Anuulosa, IS.'JS, p. 57. 



