Paraspiniphora. 107 



and Schmitz, very similar to that of notata, but it differs in being 

 quite smooth, without lateral papillæ; the lateral margin is some- 

 what swollen, and on the dorsal side there is a median longitudinal 

 furrow. The colour is blackish brown, the length about 7 — 8 mm. 

 The puparium of Bohemanni dillers somewhat from the others; it 

 is rather broad, the ventral side is only a little arched from side to 

 side, whereas the dorsal side is somewhat arched in a similar way 

 as that found in riifipes and thus with the greatest height about in 

 the anterior third, but the puparium is upon the whole rather flat; 

 the posterior end is curved upwards; the puparium is smooth, without 

 papillæ or bristles; the dorsal side is fmely granulated; the spiracular 

 tubes are somewhat short, rather thick at base and attenuating; as 

 to colour the puparium is black above, reddish or dark yellowish 

 below; the length is about 6,5 mm. 



As the puparium to the real Bergenstammi is now known, and 

 as it is proved that Keilin's Phora No. 1 is maculata and No. 2 notata, 

 I shall here include a table over the puparia, mainly after Schmitz 

 (Biol. Zentralbl. 1. c). 



1. Dorsal and lateral papillæ present, bearing bristles at 



the end 2. 



— No dorsal papillæ; lateral papillæ, if present, generally 



short, and with the bristles at end inconspicuoas 4. 



2. Dorsal and lateral papillæ large, the bristles long; the 

 three transverse rows of bristles on the abdominal seg- 

 ments distinct and somewhat long 3. 



— Dorsal and lateral papillæ small, with short bristles ; the 



transverse rows of bristles small and inconspicuous. . P. iuimaculata. 



3. Abdominal segments each with three lateral papillæ . P. Bergenstammi. 



— Abdominal segments each with only two lateral papillæ. . P. domestica. 



4. Lateral j)apillæ present 5. 



— No lateral papillæ 6. 



5. Puparium narrowly elhptical, lateral papillæ small... P.notata. 



— Puparium broadly elhptical, lateral papillæ large .... P. sp. Schmitz 1. c. 



6. Dorsal side with a longitudinal median furrow, flat, 



ventral side arched P. maculata. 



— No dorsal furrow, dorsal side somewhat arched, black, 



v^entral side rather flat, yellowish brown P. Bohemanni. 



The larvæ live in dead snails and, as seen above, they have been 

 found in various species of Helix, in Planorbis (and in a Pupid), and 

 the same species may be found on various species of the snails. Schmitz 

 remarks (Biol. Zentralbl. 1. c.) that the sense organ on the maxillary 



