89 277 



organ, but they have always been concealed under the bristles of the wheel-organ. 

 There are two lateral antennæ. The intestinal band is rather narrow, running from 

 the brain down to the testis which is embraced by it. There is no doubt that this 

 band is really hollow in this species, containing large globules, most probably of 

 oily structure; it may be shown that the band is widened over the largest globules 

 and narrowed in over the smaller ones; no globules are found in any other part of 

 the body than the band; no coloured food is found. The lateral canals are very 

 conspicuous owing to the hyalinity; they bear six vibra tile tags each; there is no con- 

 tractile vesicle; I have with certaintj' seen the canals open ventrally on the foot. 

 The testis is long, remarkably narrow, flanked by two long pyriform glands; over 

 them are one or two large, hyaline sacs, in those specimens which I have seen, con- 

 taining only one single globular opaque mass. The muscles, which are wonderfully 

 conspicuous, run as indicated in the figure. Size of male 180//, of female 450//. 

 The male has been observed several times in May — June. 



General remarks. 

 It will be seen, that the males of the genus Euchlanls are highy organised 

 animals, resembling the females in form and structure of the carapace; the wheel- 

 organ is almost in the same stage of development. Characteristic is the remarkably 

 well-developed intestinal band which in E. dilatata is provided with gastric glands; 

 in E. triquetra it is hollow. There is no contractile vesicle (indicated bj' Cohn for 

 E. dilatata). In E. triquetra the lateral canals open on the side of the foot. In E. lijra 1 

 have the impression, that they debouch in the sac, filled with opaque grains; further 

 investigations are here necessary. 



Salpinadæ. 



The family comprises the two genera Diaschiza and Salpina; three males of 

 Diaschiza and two of the genus Salpina are known. 



Diaschiza gracilis (Ehrbg.) 



Male: Dixon-Nuttall 1903, p. 10. 



DixoN-NuTTALL (1903, p. 10, PI. I, fig. 4 a) describes the male 



"as a very hyaline, soft, restless male contorting itself into a variety of form, whit'h it is im- 

 possible to represent in a drawing. It has a frontal eye, slightly marked clefts, short toes, 

 almost straight, slightly recurved. The sperm-sack fills the greater part of the body-cavity. 

 The three antennæ are to be found in their usual situations. It is without manducatory 

 organs. Length a little more than liait that of the female, being 150//. Time July." 



Diaschiza gibba (Ehrbg.) 



Male: Dixon-Nuttall 1903, p. 7. 



DixoN-NuTTALL (1903, p. 7, PI. I, fig. la) describes and figures the male. 



"It has the same four plates as the female; the setæ on the foot; the three antennæ; 

 the lateral compression, and the frontal eye; all just like the female. In contrast to those of 



D. K, D. Vidensk. Selsk. Skr., nalurv. og malheni. Afd., 8. Række. IV, 3. 37 



