ACTINOPODOUS HOLOTHÜRIOIDEA. 95 



ist das untersuchte ]Material zu geringfügig, um mit Entschieden- 

 heit eine solche Aufeinanderfolge der Kalkkörper in der Entwick- 

 lung des Individuums behaupten zu können ; doch macht die 

 sicher Consta tierte Beobachtung Baue's von dem analogen Vorgange 

 bei Sijnapta digifata eine solche Deutung der oben angegebenen 

 Thatsachen jedenfalls sehr wahrscheinlich" (Sempee 1867 — 8, p. 92). 



Also Ludwig says of //. lubrica (1887c/, p. 4) : — " Bei dem 

 kleinsten, nur 1.5 cm. langen Exemplare finden sich aber ausser- 

 dem in der Nähe der Endscheibchen der Füsschen auch noch 

 durchlöcherte Kalkgebilde, welche zwar kleinen Aufsatz haben, 

 sonst aber an die von Sempee bei seiner H. erhiaceus var. pygmaca 

 beschriebenen und abgebildeten Kalkkörper erinneren." Here it 

 is evident that Ludwig too observed the presence of tables or at 

 least of their disks in the young of IL luhrica. 



I think there is hardly any question that the specimens I 

 have examined belong to H. moehii Ludwig. At any rate, I do 

 not feel justified in establishing a new species, as there is no sub- 

 stantial ground to build it on. There can also bo no doubt that 

 it is closely allied to //. luhrica and other related species as was 

 pointed out by Theel. The only point of diiference besides 

 that in the arrangement of stone canals, is the fact that there are 

 H-shaped supporting rods in H. moehii. But even these may some- 

 times be absent as in the specimens from Koshiki (No. 1257). 

 It may be supposed that these specimens do not belong to //. 

 moehii but to some other species. But a careful dissection shows 

 that they are exactly like the other specimens of H. moehii, so 

 that I do not feel justified in specifically separating it from them. 

 At the same time, the absence of H-shaped bodies and the shape 

 of the rods make them identical with //. glaherrima Selenka or 

 H. marenzelleri Ludwig. 



