6o 



Remark: 



I. The description is taken especially from the specimen of Stat. 144, which was still attached 

 to the shell. The empty shells are so much alike the one of Stat. 144, that, to my opinion, 

 they equally belong to Cyrnbuliopsis intermedia. 



Several specimens of Cyiiibuliopsis without shell were found by the Siboga. I shall not give 

 them any specific title. In the general aspect of the animals I cannot observe any marked difference 

 from the species above described. The dimensions, however, are sometimes quite different, and 

 vary from 35 to 6 mm. The formol in which the specimens for the greater part have been 

 preserved, has seriously damaged the mantle-organs, the pallial gland, and even the nucleus. 



One of the specimens is figured on PI. I\ , fig. 105. 



They were found at the following localities: 



Living animals: 



Stat. 124. 2° 27' N., 125° 35' E. i spec. 



Stat. 141. 1° o'.4 S., i27°25'.3E. i spec. 



Stat. 148. o" i7'.6 S., i29°i4'.5E. i spec. 



Stat. 165. Daram Island. i spec. 



Stat. 167. 2°35'.5 S., i3i°26'.2E. i spec. 



Stat. 185. 3° 20' S., 127°22'.9E. 2 spec. 



The specimen of Stat. 167 is perhaps a Cyiiiditliopsis intermedia, as at this same 

 station three shells of this species have been collected. 



.Some larval forms of Cymbuliidae have been recorded by the expedition. The general 

 habitus of these larvae differs very much. Some of the forms are figured on PI. IV, figs. 

 106 — 108. They bear curious appendages to the fins. Their affinity to any adult form cannot 

 be made out; very probably they belong to various genera. 



The following localities were recorded : 



Living animals: 



Stat. 141. 1° o'.4 S., I27°25'.3E. 4 spec. 



Stat. 143. 1° 4'.5 S., I27°52'.6E. 8 spec. 



Stat. 185. 3° 20' S., I27°22'.9E. 8 spec. 



. Stat. 203. 3°32'.5 S., 124° 1 5'. 5 E. ±15 spec. 



Stat. 225. Near the Lucipara Islands. 2 spec. 



Stat. 276. 6°47'.5 S., i28°4o'.5 E. i spec. 



The specimen without shell of the Challenger (Chall. Rep. LXV, p. 99) is a larva, as 

 it bears appendages to the fins. I have studied this specimen in the British Museum. 



Anatomical Remarks. 



The close resemblance which Cymbuliopsis shows to Gleba, is also markedly expressed 

 by the visceral anatomy of both genera. 



The information we possess regarding the anatomy of Cymdtiliopsis is restricted to a 



