412 



NAOKATSU VANAGI AND VAICHIRÖ OKADA : 



Fig. 3. Menipea sym- 

 posia, var. sagamiensis. 



Frontal view, x 32. 



Menipea sympodia, var. sagamiensis, n. var. 



Pl. VI., fig. 2 ; textfig. 3. 



At Yodomi in the Sagami Bay, from a depth 

 of 321 fms , was dredged a specimen which may be 

 considered to represent a variety of the species just 

 described. In general appearance, it is quite like 

 the typical species, but differs from it in the pecu- 

 liar shape of frontal avicularia and in the better 

 development of spines. The frontal avicularia are 

 developed usually on every zoœcium and present 

 a complicated shape in that their basal parts are 

 prolonged on both sides into broad horn-like projec- 

 tions, either simple or bifid at tip, extending along 

 the inner apertural border. The avicularium covers 

 up the greater part of the aperture. Scutum un- 

 known. The spines arise from the same place as 

 in the typical form, but are more numerous and 

 more strongly developed. 



Scrupocellaria van Beneden 1844. 



Key to the species. 



Vibracular chamber on all zoœcia 2. 



Vibracular chamber not on all zocecia 4. 



With frontal avicularia 3. 



Without frontal avicularia .S', macatidrei, 



Zoœcium with five spines S. diadema. 



Zoœcium with three spines S. scrupea. 



Zoœcial aperture without spines . . .S. civic ul 11 rite. 



Zoœcial aperture with spines S. scabra. 



