254 BULLETIN 152, UNITED STATES NATIONAL MUSEUM 



Hungry Bay, Bermudas; July-September; F. G. Gosling; 1 female 

 (25441). 



ACTAEA DOVn Stimpson 



Plate 104, Figures 1-2 



Aciaea dovii Stimpson, Ann. Lye. Nat. Hist. New York, vol. 10, 1871, p. 104 

 (type-localities, San Salvador and Panama; type from Panama, 1021, Mus. 

 Comp. Zool.).32 — A. Milne Edwards, Crust. R<5g. Mex., 1879, p. 244, pi. 

 45, fig. 1. — Faxon, Mem. Mus. Comp. ZooL, vol. 18, 1895, p. 16.— Rath- 

 bun, Proc. Washington Acad. Sci., vol. 4, 1902, p. 281. 



Diagnosis. — Granulation finer and denser than in A . setigera, espe- 

 cially on posterior portion of carapace. 



Description. — The Pacific counterpart of A. setigera. The terminal 

 segment of the male abdomen is more triangular than in setigera; 

 the granulation of the carapace finer, specimens of similar size com- 

 pared. There is considerable difference in the smaller specimens of 

 dovii. A female from Panama is most sharply marked and has also 

 the edge of front finely but distinctly beaded. A little larger female 

 from Perico Island has lower and very inconspicuous granulation, 

 almost hidden by fine hairs; granulation of front edge almost negli- 

 gible. A male 7.1 mm. wide from Albemarle Island is narrower, 

 granulation low and scabrous and, with the areolation almost disap- 

 pearing in its posterior part; edge of front smooth. In none of the 

 specimens is the granulation of the posterior regions more distinct 

 than in setigera, as stated by Stimpson. 



CoZor.— Eleven orange-red stripes extend backward from frontal 

 and antero-lateral margins and converge posteriorly (25668). 



Measurements. — Male, type, according to Stimpson, length 11.4 

 mm. (.45 inch), width 16 mm. (.63 inch). Female (20600), length 

 6.3, width 9.6 mm. Female (33264), length 7.2, width 10.3 mm. 



Range. — San Salvador, Central America to Ecuador (Nobili) and 

 Galapagos Islands. 



Material examined. — Panama: Reef; March 12,1891; Albatross; I 

 young female (20600). March 15, 1860; A. Agassiz; 1 male (1021, 

 M.C.Z.). Dr. Sternbergh, Hassler Exped.; 2 females (2210, M.C.Z.). 

 Perico Island; Bay of Panama; October 26, 1904; Albatross; 1 young 

 female (33264), 1 young female (M.C.Z.). 



Taboga Island, Panama; July, 1924; E. Deichmann; 2 females 

 (60718). 



Reef N, of Tagus Cove, Albemarle Island, Galapagos Islands; 

 March 16, 1899; Hopkins Stanford Expedition; 1 male (25668). 



Other records. — S. Josa, Pearl Islands, Bay of Panama (Odhner); 

 Ecuador. 



M The specimen collected in Panamalby A. Agassiz is not marked "type" 



