NO. 9 HILTON : PYCNOGONIDS 283 



Strong spines. The body is elongate and segmented. The eye segment is 

 formed on the base of the proboscis in a little elevation. There are 4 pairs 

 of ambulatory legs. The sex openings in the male and female are in all 4 

 leg pairs except in Halosoma, where they are in the last 2 pairs. 



ANOPLODAGTYLUS Wilson, 1878 

 (PHOXIGHILIDIUM in part) 



Trunk rather slender, with the 1st segment constricted anteriorly 

 and extending forward some distance beyond the base of the proboscis, 

 forming a narrow neck. Lateral processes comparatively long and well 

 separated. Proboscis projecting obliquely downward from the ventral side 

 of the 1st trunk segment. Eye tubercle at the extreme forward end of the 

 segment. Chelifori rather small, chelate. Ovigera slender, 6-jointed, ter- 

 minal joints small. Egg masses several, globular, 1 or 2, loose, and more 

 or less irregular in shape. Legs slender, long. First tarsal joint very short. 

 Ventral margin of the 2nd tarsal joint projection at the base or heel 

 armed with strong spines. Auxiliarj^ claws minute. Its long projecting 

 neck, weaker chelifori, and 6-jointed ovigera with very small terminal 

 parts help to distinguish this genus from Phoxichilidium. 



Anoplodactylus erectus Cole, 1904 

 Plate 37 



Anoplodactylus erectus Cole, Harriman Alaska Exp., N.Y., 1904, 8°, 

 vol. 10. — Hilton, Jour. Ent. and Zool., vol. 8, no. 3, 1915; vol. 8, 

 1916; vol. 12, no. 4, 1920, p. 72; vol. 31, no. 2, 1939, p. 92; vol. 

 31, no. 4, 1939, p. 29. 



Characteristics: Body and legs slender. Lateral processes well sep- 

 arated. Eye tubercle conical, eyes near its top. Abdominal segment cy- 

 lindrical, pointed sharply upward. Second tarsus slender, about equal to 

 2nd coxal joint. Not strongly curved, 2 larger and sometimes 1 smaller 

 sharp spine at the base of the 2nd tarsus below. Terminal claw long, 

 slender; lateral claws small, slender. Toward the base of the 2nd tarsus 

 below is a knifelike edge. 



Description 



Body : Lateral processes long, well separated, larger distally, where 

 each has a small conical projection on the dorsal side pointed somewhat 

 outward. First trunk segment larger than the following two together, 

 constricted in its anterior half and produced into a narrow neck. 



