310 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL.21 



apertural flap bearing numerous setae, a longitudinal row of setae on 

 side opposite opening, tip cylindrical, tapering distally, and terminating 

 bluntly. (See Plate S, fig. 7) 



Material examined: 11 specimens from 8 Velero III stations. (See 

 Table 63) From Playa Blanca, Costa Rica, to Octavia Bay, Colombia. 

 In addition to the above, 6 specimens from 3 Askoy stations (Garth, 

 1948). 



Measurements: Male: length 14.0 mm, width without spinules 10.6 

 mm, rostrum 1.2 mm, width 2.3 mm, cheliped 18 mm, chela 8.6 mm, 

 dactyl 3.8 mm, height of palm 3.2 mm, ambulatory legs 21.4, 19.1 

 (abnormally shortened), 20.0, and 17.2 mm, respectively. Ovigerous 

 female: length 13.0 mm, width 9.5 mm. 



Color in life: Unknown. 



Habitat: Pocillopora coral in six of seven instances. This was also 

 the experience of the Askoy Expedition. (Garth) 



Depth: 4.5-10 m. (Garth) Hancock expeditions specimens were 

 encountered in shoal water to a maximum of 3.5 fathoms. 



Size and sex: The present series contains males of from 7.5 to 14.0 

 mm, females of 7.7 and 13.0 mm, the latter ovigerous. The largest speci- 

 men examined was a 14.6 mm female, also ovigerous, obtained by the 

 Askoy. 



Breeding: Females with ova were encountered by the Velero III 

 in Panama in early February and by the Askoy in Colombia in late April. 



Remarks: The present series of specimens, including those of the 

 Askoy Expedition, establish the range of Stimpson's species as the south- 

 ern portion of the Panamic province, or from Playa Blanca, Costa Rica, 

 to La Plata Island, Ecuador. Collecting off northern Mexico, pursued 

 by the Velero III with equal intensity, has failed to reveal the presence 

 of Herbstia pubescens in northerly latitudes, as would be expected from 

 the Manzanillo type locality. 



Herbstia pyriformis (Bell) 

 Plate S, Fig. S 



Rhodia pyriformis Bell, 1835b, p. 170; 1836, p. 44, pi. 9, fig. 1, la-c. 

 Herbstia pyriformis, Stimpson, 1871a, p. 93. A. Milne Edwards, 1875, 



p. 77. Miers, 1886, pp. 49, 50. Rathbun, 1910, p. 573; 1925, p. 



301, pi. 104, figs. 2, 3; pi. 240, figs. 5-8. Boone, 1927, p. 147, fig. 



43. Garth, 1946, p. 383, pi. 63, fig. 3. 



Type: Male holotype, length 16.9 mm, width 12.7 mm, originally 

 deposited in the Museum of the Zoological Society [London], no longer 

 extant. 



