«3 



We cannot decide whether this loosening of cormidia from the siphosome has any value 

 and means any interesting period in the development of Crystallomia to be compared with the 

 detachment of appendages in the shape of Etidoxids and Ersaeids in CalycopJiora. 



We give a sketch of one of them (Cat. 215 B. PI. XV, fig. i 12) which shows two siphons 

 with numerous tentilla type II and palpons at regular intervals one from the other and apart 

 from this some palpons with a female gonodendron, the whole surrounded by bracts. We might 

 suppose that the tentilla and siphon of this last group were lost. 



We also find detached cormidia consisting of only one siphon with tentilla, and another 

 cormidium in which palpons and gonostyle only are preserved. 



48. More-developed specimens of ? Crystallomia spec, group II. 



Stat. 141. Lat. i°o'.4S., Long. I27°25'.3E. Cat. 108, 109 (detached appendages probably of 



Cat. 108). formald. 4°/^^. One specimen. 

 Stat. 207. Lat. 5°7'.5S., Long. 122° 29' E. Buton-strait. Cat. 221, 222 (detached appendages 



probably of 221). formald. 4°/^. One specimen. 

 Stat. 316. Lat. 7° 19.4 S., Long. ii6°49'.5E. Cat. 26. ale. 9o7o- One specimen. 



Comparing Ca/. /oS with the most developed specimens of Crystallomia group II we 

 cannot find any essential difference, the reproductive organs only having increased in size. The 

 nectosome has a length of 6 mm. and shows, besides some buds of nectophores and indications 

 of detached ones, one well-developed mature nectophore. The siphosome (describing an angle 

 of 45° with the nectosome) consists of two mature siphons with well-developed tentilla type IV, 

 on which we could find more than twelve turns of the cnidoband. The 9 gonodendra and 

 the androphores have probably detached themselves near these two oldest siphons. The third 

 cormidium shows, besides very well-shaped tentilla type IV and a few mature palpons, also 

 some androphores of which one attains a considerable length, showing the same size as a 

 palpon. This also shows that the specimen is older than those of Crystallomia spec, group II. 

 The third and youngest .siphon does not yet show any appendages. The siphosome is entirely 

 covered by well-developed polygonal bracts. Cat. log consists of three cormidia and these do 

 not differ in shape and size from those of Cat. 108; they probably belong to each other. 



In Cat. 221 and 222 the siphons are abnormally elongated. The nectosome in Cat. 221 

 is naked, the nectophores having all fallen oft"; it has a length of 10 mm., a breadth of 2,5 mm. 

 The siphosome is entirely covered over by thick, cartilaginous, polygonal bracts and consists 

 of four cormidia, each cormidium bearing an absolutely elongated transparent siphon, which but 

 for the distal, darker coloured basigaster, would have been mistaken for a palpon, the more so 

 as regular mature palpons have fallen off. One of these siphons has a length of 13 mm. The 

 tentilla type IV are situated at the base of the siphon and attain considerable length. Female 

 and male gonophores are present in the later stages of development. Cat. 222 consists of 

 detached cormidia probably of Cat. 221 as the siphons show the same abnormal length. 



Finally Cat. 26 shows us a specimen of which the siphosome especially has assumed large 

 proportions. But again through preservation in ale. 90°/^ the general shape has much altered 

 and through contraction the numerous appendages have been placed on all the sides of the 



