No. 10 garth: brachyuran fauna of the galapagos 383 



The largest series, consisting of 17 specimens, was collected at Black 

 Beach, Charles Island. It was noticed that an unusually large proportion 

 of the females were ovigerous, 6 of the 7 having a full complement of 

 eggs. 



Herbstia pyriformis (Bell) 

 Plate 63, Fig. 3 



Rhodia pyriformis Bell, Proc. Zool. Soc. London, vol. 3, p. 170, 1835 

 (1836) ; Trans. Zool. Soc. London, vol. 2, p. 44, pi. 9, figs. 1-lc, 

 1836. 

 Herbstia pyriformis Stimpson, Ann. Lye. Nat. Hist. New York, vol. 10, 

 p. 93, 1871. Rathbun, Bull. 129, U.S. Nat. Mus., p. 301, pi. 104, 

 figs. 2 and 3 ; pi. 240, figs. 5-8, 1925. 

 Type locality. — Galapagos Islands, 6 fms, coral sand. 

 Type. — Not extant. 



Range. — Known only from the type locality and from James Island 

 (Hassler Expedition). 



Diagnosis. — Carapace pyriform, posterior margin strongly produced, 

 lateral margin with 4 spines. Ambulatory legs longer than chelipeds. A 

 spine on palm. Meri of ambulatory legs without spines, red banded. 

 Material examined (14 specimens from 7 stations). — 

 27-33. Gardner Bay, Hood Island, shore, Jan. 25, 1933, 1 young 



female. 

 30-33. Gardner Bay, Hood Island, shore, Jan. 26, 1933, 1 male, 3 



young females. 

 154-34. Reef north of Tagus Hill, Albemarle Island, reef, Jan. 15, 



1934, 1 large female. 

 194-34. Post Office Bay, Charles Island, coral from Onslow Island 



crater, Jan. 27, 1934, 2 females. 

 343-35. Sulivan Bay, James Island, shore, Dec. 12, 1934, 3 males (1 



photographed). 

 796-38. Sulivan Bay, James Island, shore, Jan. 21, 1938, 2 females. 

 800-38. Cartago Bay, Albemarle Island, shore, Jan. 22, 1938, 1 female. 

 Measurements. — Largest specimen, female: length 26.0 mm, width 

 19.7 mm, cheliped 26.3 mm, chela 11.8 mm, second ambulatory leg (the 

 longest) 35 mm; largest male: length 21.4 mm, width 16.0 mm, cheliped 

 20.0 mm. 



Color in life. — Carapace light ochre red on gastric and cardiac areas. 

 Branchial and frontal portions Van Dyke red; marginal teeth white. A 

 white triangular spot on postbranchial and intestinal regions. Merus of 

 cheliped light vinaceous fawn with bands of vivid Van Dyke red. Dark 



