ACTINOrODOI!.S HOLOTHUKIOIDEA. 5 



gauz gcspalten zu sein. Kalkring mit 10 kraftigen, fest vor- 

 bundcnen Stiicken, die Radialien mit eigentiimlichen Zalmchen an 

 der liintLTcn Einbuclitiing. Eino bis 30 mm. lange Polische Blase. 

 Ein Stuincanal, ganz olmo Kalk, aber in die Ilaut eindringend 

 und ncbon dem Genitalporus nacli aussen miindond. (ionaden als 

 2 Biischel langer, diinner, niir selten am Ende geteiltei* Sclilaucho. 

 Der Geschleclitsgang GO mm. lang, in der Mittellinic des Eiickens 

 8 mm. hintcr dem Peristom ausmiindond, oline Papille. In der 

 Wand der (Hesehleclitsschlanclie keine Kalkkorperclien. Die 2 

 Kiemenbilume gross, gan^o olme Kalk in der Wand." (Sluiter 

 lOOlrt, pp. 15— IG). 



Remarks : — The body is in all specimens covered with 

 various foreign substances such as sponge spicules, foraminifcran 

 shells, sand-grains, etc. Sponge spicules and elongate fora- 

 miniferan sliells are stuck in tlie skin and look as if they "were 

 setae produced by the animals themselves. They make the handhng 

 of tlie animals anything but pleasant, as these needle-like bodies 

 are apt to be left in the fingers. At present, there seems to be 

 some difference in the thickness of this coating in different 

 specimens and in different parts of one and tlie same specimen, 

 but this is probably due to the fact that the coating has been 

 more or less rubbed off since capture. The mouth is entirely 

 ventral, and although the tentacles are generally drawn in, they 

 are sometimes left extended. x\.t the* posterior end, where the 

 coating of foreign substances is especially thick, there is 

 a median vertical furrow, at tlu^ ventral end of which is 

 the cloacal opening. This is made plainer when tlie coating is 

 cleared off'. 



Tentacles 20; but sometimes only 17, IS, or 1!) of them can 

 be counted, probably due in part to the dilliculty of counting 



