HAUSTORIIDAE OF NEW ENGLAND BOUSFIELD 183 



Vineyard Sound, Mass., Quick's Hole, 109-110 ft., USFC, 1871: 



1 9 ov. (YPM 5626). Albatross-101 , sta. 86, 41°14', 67°28', Smith 

 grab, 24 fms., Aug. 24, 1957: 1 v. imm. (NMC 7070). Albatross 

 sta. 88, 41°24', 67°28', Smith grab, 18 fms., Aug. 24, 1957: 1 cf 

 (NMC 7068). Albatross sta. 89, 41 "29', 67^28', Smith grab, 27 fms., 

 Aug. 24, 1957: 4 imm. (NMC 7069). 



Vineyard Sound, Mass., Quick's Hole, SE. entrance, 45 ft. grab, 

 Sept. 18, 1963: 1 cf , 2 juv.; Narragansett Beach, near Pattaquamsett 

 Inlet, surf sand, low water, Sept. 23, 1963: 3 adult specimens (MBL, 

 author collections). 



Albatross-69, coll. 1, 41°52', 69°59', Nov. 15, 1955: 2 99, 1 imm.; 

 Albatross-100, sta. 108, 42°08', 67°04', Smith grab, Aug. 25, 1957: 



2 imm.; Albatross-lOl series, sta. 24, 40°43', 69°04', Smith grab, 

 Aug. 22-24, 1957: 1 v. imm.; sta. 68, 41°06', 68°00': 1 adult, 4 juv.; 

 sta. 69, 41°02', 67°56': 1 v. unm.; sta. 60, 40°57', 67°52': 1 v. imm. 

 (USFW, R.L. Wigley Collections). 



Description. — Female, 10.5-14.0 mm. Head short, very broad, 

 rostrum and lateral angles sharply acute, antennal sinus deep, eyes 

 lacking in adult, small pigmented ellipsoids in juveniles. Pleosome 

 broad, flat, not rounding dorsally. Urosome 1: ventral lappet 

 short. Antenna 1: peduncular segment 1 very short, deep, lateral 

 setae in semicircular arch, plumose distally, simple proximally; 

 segment 2 shorter, expanded distally, anterior setae short, simple; 

 segment 3 very short and broad; accessory flagellum of slender 

 unequal segments combined length greater than first three of 9- 

 segmented flagellum; calceoli apparently lacking. Antenna 2: 

 peduncular segment 4 with very deep, strongly convex posterior 

 lobe, surface sensory setae short; segment 5 tumid, anterior marginal 

 setae (as in 4) very short and fine; flagellum of 10 short segments, 

 first 2 plumose behind. 



Upper lip broad rectangular, apex smooth, slightly indented on 

 either side of midline. Lower lip: outer lobes very large, margin 

 unevenly rounding, inner truncate; inner lobes broad, distally, 

 short pilose. Mandible: left incisor tricuspate, right quadridentate; 

 right lacinia subcylindrical short, bicuspate left lacking; 10-13 

 accessory blades; palp segment 2 somewhat broadened medially, 

 margins sparingly setose; segment 3 shorter and more slender, more 

 than 30 short comb spines, apex with 11 slender spines. Maxilla 1: 

 inner plate very small, margin with 10 distally plumose setae; outer 

 plate broad, about 16 spine teeth, outermost strongest; palp slender 

 and moderately arched, marginal setae numerous; accessory lobe 

 short, broad, semicircular. Maxilla 2 outer plate nearly as broad 

 as long, margins unevenly rounded, inner proximally with about 20 

 slender blades, distally with only 9 plumes; inner plate long and 



