4 ART. 7. K. KISHINOUYE. 



longitudinal, and five or six transverse, rows. These tentacles are 

 short, capped, and are found in the subumbrella. They nearly 

 disappear from sight, when the coronal muscle is contracted. 

 They are highly adhesive. In a very small specimen, only 2 mm. 

 in length,, the secondary tentacles were six in number, arranged 

 in two longitudinal rows ; in another, 4.Ö mm. long, from nine to 

 ten tentacles were present in three rows, and in still another of 

 7 mm. length, eleven tentacles in three rows. Generally new 

 tentacles are added outside the group of older ones. 



The central stomach cavity is very long and columnar. It 

 is four-lobed in transverse section. The manubrium or the buccal 

 stomach is short and nearly as long as broad. It presents a 

 cross-like shape in transverse section. The gastral filaments are 

 long, simple and numerous, being arranged in two longitudinal rows, 

 which run very close to each other on the internal axial wall of 

 each infundibulum. They are found in the central stomach only. 



The coronal umbrella cavity is conical and occupies from one- 

 third to one-fourth of the length of the calyx ; its wall is entirely 

 covered with groups or glands of nematocysts. The four inter- 

 radial infundibular deepenings reach the aboral end of the calyx. 

 They are tolerably uniform in diameter throughout their whole 

 length. Two longitudinal, ectodermal thickenings run along the 

 abaxial side of these deepenings and are connected at the aboral 

 end. These thickenings consists of very high ectoderm cells, rich 

 in nematocysts. 



The genital glands, eight in number, arc band-like. They 

 run side by side in twos along the interradial muscles. Each 

 gland consists of numerous sacs, of which there are in old 

 specimens about fourty, arranged approximately in two rows. In 

 young specimens the sacs are less in number and are arranged 



