MALLOPHAGA FROM BIRDS 465 



Albemarle, Chatham and Narboro ; Geospiza cofiirostris irova Hood, 

 Geospiza fortis from Albemarle, two specimens from Camarhynchus 

 productus from Albemarle ; Catnarhynchus prostheynalas from Albe- 

 marle, and JVesofnirnus parvulus (Galapagos Islands). A very small 

 Docophorus with Nirmoid markings and head characters, but the 

 usual broad Docophoroid abdomen. It is to be noticed that, so far as 

 this collection indicates, this parasite is confined to birds peculiar to 

 the Galapagos Islands. 



Male. — Body, length 1.6 mm., width .3 mm.; head pale, golden 

 brown, abdomen very pale brown with dark brown margin. Head, 

 length .4 mm., width .35 mm. ; triangular, with narrow anteriorly 

 tapering clypeus, which is truncate in front; one short hair on the an- 

 terior angles, and three along the front of the rather small trabecul^e ; 

 eye indistinct, with a short prickle, temporal margin weakly convex, 

 with a long hair and several short prickles ; occipital margin straight, 

 with two prickles along each posterior angle ; ground color of head 

 pale golden brown with narrow dark brown antennal bands, well col- 

 ored signature and narrow dark brown temporal margin. Prothorax 

 small, with slightly rounded rectangular posterior angles, and straight 

 posterior margin, with one long hair in posterior angle ; brown lateral 

 borders, which bend inward at posterior angle. Metathorax short, 

 broad, angulated on abdomen, with eight hairs along each latero-pos- 

 terior margin ; brown lateral borders which bend inward along pos- 

 terior angle. Legs concolorus with body, with margin pale brown. 

 Abdomen ovate, stout, one third wider than head, with one to two 

 hairs on posterior angles of segments ; dorsal aspect of segments 4-7 

 with three groups of two hairs ; lateral bands translucent dark brown, 

 the segmental portions passing the sutures and projecting inward ; 

 slight indications of median transverse bands ; last segment conspicu- 

 ous, caudal end round; genitalia showing through body wall. 



DOCOPHORUS ALBEMARLENSIS sp. nov. 



(PI. XXVIII, fig. 5.) 



Two specimens, male and female, from Ca77iarhytichus affints from 

 Albemarle. 



Male. — Body, length 1.61 mm., width .57 mm.; smoky golden 

 brown with dark margins, head wider than abdomen. Head, length 

 .63 mm., width .58 mm.; conical, with truncate or weakly convex 

 front, three marginal hairs, one of which is behind the anterior lateral 

 angle, a short marginal hair on the front of the trabccuke ; trabeculte 

 not reaching beyond middle of segment 2 of antennse ; antennai with 



