142 



Transactions of the Society. 



length. Duct springs from just behind the septum. Coelomic 

 corpuscles of two kinds, the larger oval, nucleated and granular. 

 Large dorsal pores and conspicuous guard cells. Altogether a well- 

 defined species. The crown of glands on the spermathecre recalls 

 hegemon and microcara, but the differences are well marked. 



Fig. 19. — Fridericia coronata sp. n. Spermatheca. 



Habitat. — Blenheim Park, April 14, 1913. Examined in June, 

 after keeping the material nearly three months ; worms were then 

 fully adult. 



Fridericia parva Bret. 



Some of Bretscher's descriptions are very imperfect, but of this 

 he distinctly says that it has two seta? in each bundle ; hence it 

 cannot be the same as F. bretsclieri Southern. The F. parva of 

 Moore has been referred to F. bulbosa Eosa. I am not so sure 

 that they are one and the same, but my record in Naturalist, 

 August 1898, was made before we dreamed that the genus was so 

 extensive, and later research has not cleared the matter up. 



Fridericia hillmani Friend. 

 Described in Zoologist, December 1913, p. 462. 



Fridericia rotunda sp. n. 



Length 15-20 mm. Segments 55-60. Dense, opaque ; dirty 

 white or yellowish in colour. Set?e usually 4-6 dorsal, and up to 

 eight ventral in anterior bundles, and, as a rule, four or three behind, 

 very stout. Brain almost spherical, whence the name. Sperma- 

 thecse with short stout duct, two glands at 4/5 opening, and five or 

 perhaps six sessile diverticula. The whole organ quite the stoutest 

 I have seen in the genus. Girdle thick, including half 11 to half 

 13, or perhaps the whole of the latter segment when perfectly 



