212 CALIFORNIA ACADEMY OF SCIENCES. [Proc. 3D Ser. 



The nefhridia vary considerably but they are always 

 separated and do not overlap or touch each other. Number 

 2 is generally the largest; it is oblong and round. Number 

 I is hardly smaller than 2, and there is no separate coslomic 

 mantle for the ducts nearest the nephrostome. 



Benhamia papillata Eisen, hawaiiensis, var. no v. 



Plate X, Figs. 77-79; Plate XIV, 170, 171. 



Definition. — Length 40 to 50 mm. Somites 114. First dorsal pore IV/V. 

 Prostate pores on small papillae. Penial setae largest, with four sharp spines 

 and slightly wider tip ; smaller seta with a very thin, slightly sigmoid tip. 

 Diverticle of the spermatheca at the junction of the muscular and glandular 

 part, or in the muscular part. Nephridia in three pairs ; No. i consists of 

 two lobes of the coelomic mantle ; the ventral lobe is the smallest. Color 

 pale flesh, with yellowish clitellum. 



Habitat. — Honolulu, Hawaii. Eight specimens presented 

 by Mr. Alexander Craw. One specimen from Samoa. 



The differences between B . -papillata and the variety 

 hawaiiensis while slight are of sufficient interest to warrant 

 their being recorded. It is not necessary to repeat the 

 characters of the species, but only to mention those in 

 which the species and variety differ from each other. 



The specimen from Samoa differs in having the diverticle 

 of the spermatheca start from the muscular part instead of 

 from the junction of the glandular and muscular parts, as 

 in the specimens from Hawaii. Unfortunately the penial 

 setae could not be distinguished in the single specimen from 

 Samoa. I have, however, little hesitation in placing all 

 these forms together m one variety. 



External, Characters. — Variety hawaiiensis is smaller 

 in size and the somites are fewer in number than in the 

 species. The papillag on which the prostates open are not 

 as prominent as those of the species. The clitellum is very 

 rough and considerably overlaps the genital pit. The 

 smaller penial setae are less sigmoidal at the tip, which is 

 somewhat shorter than in the species. The largest seta is 

 furnished with four short spines instead of blunt notches as 

 in the species. The first dorsal pore is VI/V. 



