THE SPIDER CKABS OF AMERICA 501 



across the gastric region; 2 tubercles Jnear the outer edge of each 

 branchial region; a row of tubercles above the posterior margin. 

 Some fine granules on the inner areole of the branchial region ; gran- 

 ules also on the protogastric regions, while a row of granules leads 

 forward onto each horn. Typically four spines on each branchial 

 region, three of which form a transverse row with the conical cardiac 

 region, the outer spine of the row being marginal; the fourth spine is 

 also marginal but lower and further forward than the third. Be- 

 tween the second and third spines there may be an additional, smaller, 

 secondary spine. The first or innermost spine (that next the cardiac 

 region) may be obsolete and represented by only a low, conical 

 swelling. Each spine and tubercle bears a tuft of long, curled hairs; 

 a band of similar hairs runs along the 

 antero-lateral margins and along each side 

 of the gastric region to the tips of the 

 rostral horns. On the antero-lateral wall 

 are two much raised, oval disks, one hepatic 

 and one branchial ; the side of the postorbital 

 cup is also flattened. 



The margin of the basal antennal segment 

 beara no tooth nor lobe behind the slender, 

 antero-lateral spine. 



The arm has three triangular teeth above. 

 The first leg has a long spine on the carpus 



and another near the distal end of the r,G.i42.-MicROPHRYSAcuLEATU3 

 merus; the second leg has a spine on the (25677), basal antennal aeti- 



1 CLE, X 12.7 



carpus only. 



Measurements. — Ovigerous female (40464), entire length of carapace 

 15.7, width of carapace without spines 13.8 mm. 



Range. — Ecuador (Nobili); Peru; Galapagos Islands. 



Material examined. — 



Lobos de Afuera, Peru; rocky bottom along shore, which is cov- 

 ered with growth of seaweed; March 18, 1907; R. E. Coker, col- 

 lector; 2 females (40464); received from Peruvian Government. 



North end of Ferrol Bay (Chimbote), Peru; rocks between tide 

 lines; March 1; R. E. Coker, collector; 1 young female (40465); re- 

 ceived from Peruvian Government. 



Reef north of Tagus Hill, Tagus Cove, Albemarle Island, Galapa- 

 gos Islands; March 16, 1899; Stanford University; 1 female (25677). 

 5487— 25t 34 



