CORALLINiE VER^ JAPONICE. 



15 



Our specimen is somewhat fragmentary ;ind the entire aspect 

 can not be fully known : hut the convexity of the dorsal surface and 

 canaliculation in the ventral very well coincide with Marten's 

 description. One peculiarity in this plarjt is that the flat articuli 

 may give rise at their edges to a lot of tiny hranchlets. This 

 character is cleary shown in Marten's plate as well as in the accom- 

 panying photograph. 



By trnwling on the coast of the Pro v. of Kazusa ; rare. (Dr. K. 

 Okamura). 



11. Amphiroa declinata, sp. nov. 



PI. I. fig. 29 : PI. A^I. fig. 4. 



Fronde declinata, ima bîisi tereti, superne compresso-complanata, 

 di-trichotoma ; ramis patentihus, pinnatis saepe bipinnatis ; pinnis 

 pinnulisque sursum sensim brevioribus ; articulis inferioribus cylin- 

 draceis diametro sesqui-vel 2-plo longioribus, mediis subscutiformibus 

 vel hexagonis, apicalibus rotundis, pinnarum pinnularumque sublineœ- 

 scutiformibus ; geniculis linearibus ; conceptiiculis numerosissimis 

 conicis in marginibus articulorum insitis. 



The articuli in the middle and the upper portions are always 

 compressed, more or less plainly costated. Tlie branches are regularly 

 pinnated with their general <nitlines rhomboidal. The fronds measure 

 4-0 cm. in length ; the average articuli 1.5-2.5 mm. wide, 2.5-O.0 

 mm. long. They grow upright at the beginning but soon spread 

 horizontally vvitli the. upper parts bending downwards. The con- 

 ceptacles, 0.5 mm. in iliameter, are found mostly growing in a row 

 on the edge of an articalus, pointing obliquely toward the ventral side. 



Below low tide mark. Misuki : Prov. of Hiuoa : Prov. of Echisfo: 

 Prov. of Wakasa (Mr. \{. Tsuge) : Matsushima Bay. 



