38 AET. 5. — SANJI HÔZAWA : 



in length, nearly uniformly thick in the greater parts of their 

 length, pointed at end, 90-230 /^ long 12// thick. Apical ray 

 almost straight, sometimes sHghtly crooked in the apical parts, 

 gradually sharp -pointed, under 150// length and 8/^ thickness. 



Large oxea of dermal cortex (textfig. 7,/, k). — Usually large, 

 straight or shghtly curved, thickest at about the middle, 

 gradually tapering towards sharp-pointed ends, 1.2-3 mm. long 

 and 50-80 /^. thick. 



Large oxea of gastral cortex (textfig. 7, /, r>i).— Nearly similar 

 to those of dermal cortex, being differentiated from these only 

 in the fewer number and in the less reo;ular arrangement. 



Microxea (textfig. 7, o, j?, q). — Generally slightly curved, nearly 

 uniformly thick throughout their length, and pointed at both ends, 

 110-210// long and 6-8// thick. 



Note. — This sj^ecies appears to be referable to AmpMufe 

 Hanitsch, by the presence of subdermal pseudosagittal and sub- 

 gastral triradiates and of the large longitudinal oxea in both 

 dermal and gastral cortices. But it differs in several respects from 

 the only other known species of the genus Amphiute paulini, which 

 was first described by Hanitsch (1, 2) and afterwards also by 

 Beeitfuss (4) from the west coast of Portugal. The difference 

 consists chiefly in the present form being sohtary, in the osculum 

 being destitute of a distinct and conspicuous fringe, and in the 

 dimensions and other details of the characters of most spicules. 



I take pleasure in naming this interesting species after Prof- 

 essor I.JIMA. 



Locality. — Doketsba, Sagami Sea. 



