HYDROCORALS OF THE KORTH PACIFIC FISHER 505 



tiguoiis. This peculiarity of the lateral cyclosystems is not found in 

 campyleca or any of its subspecies. 



The cyclosystems of polyorchis, except some of the distorted lateral 

 ones, are smaller than in campyleca, with a gastropore that is usually 

 straight where the coenosteum is thick enough to allow it. The septa 

 between dactylo tomes are not continued as decurrent ridges down 

 the sides of the gastropore as in the case of campyleca. In campyleca 

 the gastropores on small branchlets remain deep and curved, and 

 appear never to assume the form shown by plate 35, figures Ic and 1^^. 

 The style cham.ber is definitely differentiated in polyorchis. The 

 female ampullae are slightly wrinkled (pi. 35, fig. 16). 



The style chamber is fairly well developed in A. campyleca paragea, 

 but its cyclosystems are smaller, especially those of the lateral aspect 

 of the brancbJets, and they are not at all crowded after the manner 

 of polyorchis. The male ampullae are not so prominent and pointed- 

 conical as in polyorchis, nor are the female ampullae wrinkled. 



ALLOPORA CAMPYLECA, ntw species 



Plate 34; Plate 36 



Diagnosis. — Colony large, subflabelliform, with anastomosing 

 branches; color very pale buff; cyclosystems prominent, projecting, 

 mostly on one face of colony; dactylopores 8 to 15, narrow; length of 

 dactylo tome about one-third diameter of cyclosystem; dactylostyle 

 very small, scarcely emerging above inner lip of pore; gastropore deep, 

 narrow, curved; gastrostyle slender, sharp; am.pullae very numerous, 

 superficial, forming blisterlike convexities, those of male colonies about 

 the diameter of gastropore ; those of female colonies about the diam- 

 eter of medium-sized cyclosystems. 



Description: — Colony large, subflabelliform, with massive branches, 

 which may anastomose ot base of colony; branchlets often abruptly 

 smaller than main branches, slightly flattened, irregular, with cyclo- 

 systems irregularly along sides, as well as on the front. On the more 

 convex posterior face of branches and brancldets there are but few 

 cyclosystems, although the pustulate ampullae encroach upon the 

 posterior surface of branchlets. The type fragment, which is evi- 

 dently only a part of a larger colony, is 180 mm by 90 mm, the main 

 stem being 25 mm in diameter. 



The cyclosystems are subcircular but vary to broadly elliptical, 

 especially on sides of peripheral branchlets, and are abruptly raised 

 above the general surface of the coenosteum from one-third to one- 

 half the diameter of the system — occasionally even more on peripheral 

 branchlets. Dactylotomes 8 to 15, commonly 9 or 10, narrow, with 

 subparallel sides, the radial dimension usually a little less than a third 



