SEA-FISHERIES LABORATORY. 327 



forming a little rounded mass penetrating through the 

 tissues of the organ, which in the case represented is the 

 kidney. 



The mycelium is comparatively simple, and the 

 hyphse themselves are about 0*005 mm. in thickness. 

 They are non-septate and are filled up with a homo- 

 geneous, lightly staining substance. The conidia in which 

 these hyphse terminate are oval bodies, very variable in 

 size, but, on the average, about 008 by 004 mm. in 

 diameter. 



Apparently there are two kinds of conidium. One 

 kind (fig. 6, pi. XVI.) stains more deeply than the other, 

 in the ground substance and the cell inclusions. Scattered 

 irregularly over the section are a number of small, rounded 

 homogeneous granules. The other kind of conidium 

 stains more lightly and the ground substance is more 

 nearly homogeneous, while granules, as described above, 

 are not apparent.. 



Here and there in the sections are to be seen 

 structures which are apparently resting spores. These 

 are represented in figs. 7, 8. Each is a rounded body 

 measuring from 0'Od mm. to rather less in diameter. It 

 consists of the spore itself surrounded by one or more 

 distinct capsules. The substance of the spore usually 

 contains the small granules, to be seen in the conidia. 

 Fig. 4 represents such a resting spore beginning to 

 germinate and showing the beginning of a hypha. 



I think there is little doubt that the organism is to 

 be referred to a genus of Entomophthorinese ; and is to 

 be placed near to the genus Conidiobolus.' But, in the 

 absence of material for setting up pure cultures, it is not 

 possible to say more. The fungi of this group are either 



:;: I am indebted to Prof. Harvey Gibson for assistance in this 

 identification. 



