Description of Two New Phyllopoda. 15 



greater part of their length, fringed posteriorly with long 

 ciliated setæ, caudal plates terminating below in a very 

 acute, straight corner, and having the posterior edge divided 

 into 12 — 16 small denticles; dorsal spines present only in 

 a single distinctly developed pair. Eggs in the matrix 

 provided each with a very uneven capsule divided into 

 depressed hexagonal facets, the angles of which are acutely 

 produced. Length of shell in female attaining 7 mm., in 

 male 5.50 mm. 



Remarks. — This is a true Eidimadia, exhibiting very 

 pronouncedly most of the particulars referred to by 

 Dr. Packard as distinguishing characters between this genus 

 and that of Limnadia. It is very distinct from the Sydney 

 species, E. stanleyana (King), described by the present 

 author in his first paper on Australian Phyllopoda, and the latter 

 form should perhaps more properly be regarded as the 

 type of a separate genus, for which I would propose the 

 name of Parcdimnadia. The present form much more 

 resembles 2 species recently described by the Japanese 

 zoologist, Mr. Ishikawa, from the neighbourhood of Tokyo, 

 as E. packardiana and E. braueriana. From both of 

 these it differs, however, in the more oblong or elliptical 

 form of the shell, and in the greater number of branchial 

 legs. The species is named in honour of its discoverer, 

 Mr. Knut Dahl. 



Description of the female. 



In the largest specimens examined, the shell attains a 

 length of 7 mm., a height of 4.40 mm., and a width of 

 2.0 mm. It is accordingly rather larger than the 2 Japanese 

 species, but does not nearly attain the large size of the 



