750 TAOR SKOfisniour, 



S t> V »• 11 t h 1 i 111 h: — Tlu' longest vnd l)ii.stlc is about a (|Uaili'r ol' llic Ifii^'th of llii' 

 shell. The ond joint is furnisluHl with short, fine liairs. 



I'tMiis: — This has a inarkod ^--sliapc Tin' |)ait ])ni.\imally of tlic (■oiilractioii is 

 almost as large as the ilistal part. It is niuiuh'd distally. There is no coinilatory a|)|)eii(la^M'. 

 For further details see figures 31 and 32. 



F u r (• a (fig. 30): — This has .seven claws; the armature of the claws is very weak, 

 lietween the first and second claw a rounded, \erruciforni process seems always to be developed. 

 Behind the claws there is always an unpaired bristle, about as long as or somewhat shorter than 

 the posterior claw. Tlie lainella(> are furnished witli i^inujis of rather short, stiff liairs, in most 

 cases on both the meiiial and the lateral sides. 



The r o d - s h a p e d organ is pointed distally (sometimes it has two points) and reaches 

 about as far as the dorso-distal boundary of the third joint of the first antenna (fig. 12). 



IT p p e r lip: — This projects rather decidedly and is rounded anteriorly. It is pro- 

 vided anteriorly with two low, rounded protuberances, one on each side, at some distance 

 from the middle line (one of these protuberances is indicated in the adjoining figure 10), but 

 apart from these it is smooth. The glands of the upper lij) open out on two moderately large 

 and somewhat rounded fields, one on each side, at some distance from the middle line and from 

 the posterior ventral edge of this lip (one of these fields is shown by a weakly undulating line 

 on the adjoining fig. 10). The posterior ventral edge of the upper lip is rounded (see fig. 11); 

 its combs project rather decidedly and are furnished with numerous rather fine hairs. No 

 glands have their exits on these combs. The part between these combs is about as broad as 

 each of the latter and is weakly and uniformly convex. 



The paragnates are of about the type reproduced by me for Conchoecia rotundata, 

 p. 650 above. Thechitinous lists behind the lower lip are of quite the same type as is reproduced 

 for Conchoecia symmetrica. 



Female: — 



Shell: — This differs rather considerably from that of the male. Length, 1,10 to 

 1.3 mm. Length : height about 2,3 : 1; length : breadth about 2,75 :1. Seen from the 

 side (fig. 6), it is elongated, with its greatest height at about the middle and the anterior 

 and posterior parts of about the same size or the posterior part slightly larger than the anterior 

 part. The ventral margin is like that of the male; the posterior margin, which is somewhat 

 more weakly curved than in the male, forms, together with the dorsal margin, an angle that 

 is rather considerably less than 90". The posterior dorsal corner is of the same type as in the 

 male, i. e. the right valve is always furnished with a spine, the left valve has in most cases an 

 extremely small spine, which is sometimes quite absent (cf. fig. 8). The rostrum is bent some- 

 what more ventraUy than in the male, and is rather narrow and unsy mmetrical ; the left rostral 

 process is longer than the other and is drawn out distally in a more or less long point; asym- 

 metry varies somewhat; it is seldom more distinct than in the adjoining figure 9, sometimes 

 it is rather weak. The shoulder vaiilt is not distinct. Seen from below (fig. 7) 

 the shell is lentil-shaped, with its greatest breadth at or just behind the middle, the posterior 

 part slightly or not at all larger than the anterior part, with pointed anterior and posterior 



