ERYMOPHORA 



469 



evidence goes at present, in the smaller size and simple radial sculpture of the ovicells 

 (cf. Fig. 53 C and D). 



Erymophora gen.n. 



Genotype. Brettia pellucida var. gracilis Nichols, 1911, p. 7, pi. i, figs. 1-3. 



Definition. Zoarium erect, uniserial. Branches originating as lateral buds and pro- 

 jecting at right angles to branch, usually connected by a tube with zooecium proximal 

 to parent zooecium. Zooecia tubular and jointed proximally, expanded distally. Opesia 

 membraniporine, oval, with narrow cryptocyst. Avicularia (when present) stalked, 



m.d.z 



<3V. 



J 



imm 



I. I ■ I ■ 1 ■ I ■ I 



D -5mm 



I.I.I 



A.B 



•5mm 



Fig. 56. A-C. Erymophora sp. indet. Specimen received from Professor Hickson from the Terra Nova 

 collection. Locality unknown. A. Frontal view. B. Basal view, with the proximal zooecium twisted 

 into an oblique view in mounting. C. Mandible. D. Brettia triplex sp.n. St. TN 194, off Oates Land. 

 One rather crumpled zooecium. 



av. avicularium, c. cryptocyst, l.d.z. lateral distal zooecium, m.d.z. median distal zooecium, op. oper- 

 culum, ops. opesia, r. rootlet. 



capitate, attached medianly to distal wall, mandible rounded. Ovicells (only known in 

 genotype) hyperstomial. 



Remarks. This genus is included in the Bicellariellidae on the evidence of a small 

 specimen bearing stalked avicularia found by Professor Hickson among Terra Nova 

 material from an unknown locality (Fig. 56 A-C). The avicularia resemble those of 



