THE SYSTEM OF PHYLLOPHORIN.É. 



»7 



Remarks. — This species comes very close to Phyllophorns cebuensis 

 with regard to their color, habitat and calcareous tables. But in that 

 species, as unanimously given by authors, interradial segments of the 

 calcareous ring are simple, while no other calcareous deposit than 

 tables has been given to exist [Semper 42, P- 67, Taf. XII., Fig. 5 ; 

 Taf. XIII.. Fig. 25; Taf. XV., Fig. 8; Pearson 38, pp. 194—195, 

 Pl. II., figs. 22 — 24; 39, P- 19Ï]. The specimen described by T11ÉEL 

 under the name of Thyonidium cebuense [46, P- 95, PI- IX., fig. 4], 

 which PEARSON [38] proposed to distinguish as var. theeli, is doubt- 

 lessly different from ours, in that it possesses much modified tables in 

 pedicels. Our species also appears to be allied to PhyllopJiorits tener 

 in having a sparse number of tables of similar size and form and in 

 having calcareous ring of a similar structure. The two forms are, 

 however, markedly different in the number of tentacles and in the 

 presence of " Kalkconcretionen " [LUDWIG 20, P- 19, Taf. VI., Fig. 

 21, b] instead of rosettes. As regards Ph. tener, the fact reported by 

 SlUITER [43, P- 208] that that species lives quite a long time in 

 aquarium, seems to indicate a point of its difference from Ph. fragilis, 

 which, according to MlTSUKURl's observation, is a very difficult 

 animal to handle without causing evisceration. 



6. Phyllopliorus liypsipyvyus (v. Marenzeller). 

 (Pl. I., fig. i ; textfig. 7). 

 Orcula hypsipyrga v. Marenzeleer, 1881 [31], pp. 135 — 136, 

 Taf. V., Fig. 10. — Lamtert, 1885 [18], p. 168.— Théel, 

 1886 [46], pp. 97, 149, Pl. V., fig. 6, a-b. — Ludwig, 1889— 

 '92 [26], p. 347-- Sluiter, 1901 [44], p. 109. 



Habitat. — Japan: a single specimen [v. Mar ENZELl .er). 



Akashi Strait, "Challenger" Station 233 A. Lat. 34 38' N., 

 long 1 35 1' E., 50 fms., sand,: a single specimen (Théel). 



Molo-Strasse, " Siboga " Station 51, 69—91 m., sand with stones 

 and shells : a single specimen (SlULTER). 



