94 bulletin: museum of comparative zoology. 



The gonopods are longer. Anterior pair a little enlarged distad, in side 

 view distally subtruncate. Styles carried well below the anterior gonopods 

 and distally curved with the concavity caudad. 



Number of segments (male) fewer, being only forty-three as against a 

 minimum of fifty-four noted in the other species. 



Length, near 6 mm. 



A smaller and paler species than S. fijinisis. 



253. SiPHONOTUs senior, .sp. nov. 



Type.— M. C. Z. 4,587. Paratypes.— M. C. Z. 4,588. Fijis: 

 Nadarivatu (W. M. Mann). 



Color in general hght ferruginous with the usual violaceous brown darker 

 pigment over the background, this more dense anteriorly; antennae colored 

 with same pigment of which there are also the usual markings on the head. 



Antennae short and stout, a httle clavate; articles short. Face narrow, 

 evenly attenuated ventrad. 



Prozonites in anterior region strongly depressed below the level of the 

 metazonites, less noticeably so in posterior region. Last tergite free above, 

 equalUng the valves. 



Number of segments in the type, a female, eighty-five. 



Length, near 16 mm.^ 



An obA'iously larger, more robust species than those above described. 

 Characterized in having the venter concave, the lower edges of the 

 tergites extending below the level of the sternites along entire length 

 of body, instead of only anteriorly. Hairs of dorsum very short and 

 sparse. Hairs on front of head short, rather dense above, fewer on 

 caudal surface. 



254. Siphonotus frater, sp. nov. 



Type.— M. C. Z. 4,589. Fijis : Levuka (W. M. Mann). 



A large species like S. senior. More uniformly colored than that 

 species. While the depth of the orange or light color varies, the 

 violaceous mottlings or dots are scarcely evident excepting on the an- 

 tennae. Like S. senior the venter is concavely upraised above the 

 level of the lower edges of the tergites but in the posterior region 

 much less so than in the other species. 



The head is proportionately longer than in 8. senior. Whereas in 

 the latter species the distance from the eye to the lower end of the head 



