ACTINOrODOUS IIOLOTHUllIOIDEA. 



229 



fi-eie, kleino Stoincanalchcn und 4 Poli'sche Blasen. Die Saiig- 

 fiisschen besitzen deutliclio Ampullen. (jlesehlechtsschlaucho uii- 

 getheilt ; Kloukc (lurch zulilreiehe Muskcln gelialtcii '' (Ski.knka 

 18(37, p. 355.) 



Jiemarks : — Body in uuiny specimens kidney-shaped, dorsally 

 l)ent so that the ventral median line is longest. fSkin hard and 

 coriaceous, with deep wi'inkles. Color yellowish brown. Segments 

 of calcareous ring are each composed of many small pieces set 

 like a mosaic. Eadialia bifid, with long posterior prolongations. 

 l\)lian vesicles several (in one specimen eight) ; stone-canals and 

 madreporic bodies many, as repre- 

 sented in Selenka's Fig. 115. 



Calcareous deposits as in 

 Selenka's Fig. 110. Four-holed 

 buttons with knobs around tlu; 

 margin, so tliat they look like a 

 pearl-necklace (textfig. 4?> a,h), with 

 a second ring crossing the first at 

 right angles. End-plates imperfect. 

 Large four- or more-holed buttons 

 ((■) present as supporting rods 

 around the ends of the pedicels. 



Lfx^dliljl : — /nnzibar (Selenka '67, IjAMPERT '8.5, Ludwig '99) ; Boliol, 

 Oiuial YOU Liipiiiig (Sesu'EK 'G7 — 8) ; Jiipa,n (v. Mauenzeller '81) ; Aden 

 (v. Maisenzeller '81) ; Torres Strait (Bell '84) ; Mozambique (Semper 'G9, 

 Theel '8G) ; Java (Sluiter '87) ; West Coast of Salawatti (SLurrER '01) ; 

 Mole Str;usse (SLurrEii '01) ; Labium Batlj'o (SLurrER '01) ; " Silx)ga " Stat. 

 77 (SLurj'Ei; '01); N('g<jmb(>, Ceylon (Bearsox '03); S. of Kyuslu'i. 



Textfig. 43. 



Thi/one sanellus : a, h — Fonr-holeil, 

 knobbed buttons ; fi — Ptrfomteil pinte 

 of peilicel. (xtOU). 



