NO. 9 HILTON: PYCNOGONIDS 281 



Family GalIipallenidae(Hoek:), 1876 



Chelifori well developed, palpi lacking in most, ovigera in both sexes. 

 The chelifori are 2- or 3-jointed with very large chelae, which extend 

 over the mouth. In a few there are palpi 1- to 4-jointed. The ovigers are 

 10-jointed and are well developed in both sexes. They are usually coiled 

 at the free ends and are supplied with marked compound spines. The 

 body is elongate and segmented. The eye segment is on the neck in front 

 of the base of the 1st pair of walking legs. The proboscis is rather short 

 and cylindrical. There are 4 pairs of walking legs. The sex openings in 

 the male are in the 3rd and 4th pairs or in all the legs. In the female the 

 sex openings are in all the legs. 



Callipallene californiensis (Hall), 1913 

 Plate 36 



Pallene californiensis Hall, Univ. Calif. Pub. Zool., vol. 11, no. 6, 1913, 

 pp. 131-134, pi. 4. — Hilton, Jour. Ent. and Zool., vol. 8, no. 3, 

 1915, p. 67; 1920; vol. 31, no. 2, 1939, p. 92. 



Characteristics: Slender body, ocular segment rather compact, short 

 neck. First segment of the body not quite so long as the rest of the body 

 and the 1st coxal segment of the last pair of legs. Three strong spines on 

 the 2nd tarsal joint below. The 1st and last of these may be paired. Fifth 

 joint of the oviger with a marked projection. Third and 4th body seg- 

 mentation lines not distinct. 



Description 



Body: Short, stout, smooth surface. Anterior corners of 1st body 

 segment rounded with quite a constriction of this part laterally, halfway 

 between the posterior border of the segment and the base of the chelifori. 

 Lateral processes with bases contiguous. A furrow in the body makes it 

 appear that there are precoxal joints to the legs. Segmentation distinct 

 between 1st and 2nd and 2nd and 3rd body segments. Third and 4th 

 body segments united, but with a line or furrow in the integument across 

 the body anterior to the insertion of the caudal segment and shows trace 

 of obsolete segmentation between these segments. 



Ocular tubercle: Low, situated above and between the lateral proc- 

 esses of 1st legs, and distinct, about its own diameter from the posterior 

 body segment. 



Proboscis: Very short and blunt, length % its diameter. Anterior 

 corners rounded. 



