Pomona Coi.i.eok JorRNAr of Rntomoi.ooy 663 



Watophilus errans sp. n<iv. 



A small sproirs imdi-r l.'i iiiiii. in Itnjjtii and sc«-miiij{ to lmv»- constantly 

 forty-tlircf pairs of legs in the fi-nialc and forty-onr in the male. Tlu- body is 

 yellowish white with the head of a pale reddish cast. The cephalic j)lnte is 

 elongate with the sides weakly convex, a little converging at ends, more so 

 cephalad ; caudal border truncate, overlapping considerably the basal plate, the 

 exposed portion of which is very short, l«'ing eight times widiT than long, and 

 is marked with a distinct longitudinal median sulcus. No frontal suture is present. 

 Tlie nntennii> are short and strictly tiliforui. The claws of the prehensorial feet 

 when closed extend beyond front margin of head; claw armed at base with a stout 

 conical tooth, the first joint armed near distal end with a somewhat larger conical 

 tooth. First spiracle subelliptic, larger than the second, others circular. Last 

 ventral plate wide. Coxopleural pores small, few, mostly covered. 



Locality. — Berkeley, Cal.. (author, .April, 191 1). 



Watophilus laetus s|i. nov. 



Held with sides iicirly pir.illil, a little converging e.ind.id. but slightly 

 cxcurved ; c.iudal m;irgin truncate. The anterior ncirly so; corners not strongly 

 round<'d ; much longer than wide (.'5:4). Basal plate much covered by cephalic, 

 the exposed portion about three and one-half times wider than long, one-quarter 

 as long as head. Anteiinie longer than in the preceding species. Claws of pre- 

 hensorial feet when closed extending a little beyond front margin of head; tooth 

 of claw small. Prosti-rnum wider than long (ll:f)). Last ventral plate wide, 

 sides converging caudad, caudal margin a litth' incurved. Coxopleura pores few. 

 l)artly covered. Distal joint of anal legs long and slender. Anal legs in male 

 crassate proximally, the four distal artielis shiidir. I'.iirs of legs. forty-sev<-n to 

 fifty-five. Length about l.'i mm. 



Localities. — Stanford (NL-mn), Pacific (irove .ind Berkeley (author). The 

 type is from Berkeley. 



Family Soniphilidae 



Of tile three genera at present known to belong to this family, two occur in 

 California. They are characterized by having a coalescence between the jiarts of 

 the labrum, the middle piece widely extending along the lateral to their outer 

 ends in most cases where, at least fusion is evident ; at the middle of the free edge 

 two decidedly l;irger and more strongly chitini/.ed teeth are borne, the adjacent 

 ones being abruptly smaller, these middle teeth with in some several adjoining 

 pairs in two of the genera extending directly; ventrad rather than caudad; lateral 

 |)ortions of edge ])ectinate. The first maxillip may or may not bear well developed 

 lap|)ets. .^second maxillir without ))leuro-sternal suture, the coxap broadly joined 

 at nnddle. Chitinous lines of ))rosternum strongly developed. Anterior Iwrder 

 of each anterior sternite is furrowed transversely, the furrow being guarded 

 vcntrally as a ride bv a chitinous rim or flange beneath which fits the edge of the 

 jireccding ()late. 



The three gener.i may be separ.iteil by means of the following key: 



