42 GASTEROPFODA. BULLAD. 
2. HAMINAA DILATATA. _ 
H. testa longitudinaliter et tenuiter strigosa, apertura ad dex- 
tram posticeé dilatata. 
Shell longitudinally and finely striolated, the aperture on the 
left side posteriorly dilated. 
I have seen but a single specimen of this shell, which was 
taken off Falmouth, and is evidently in its young state. It 
differs very essentially from the young of H. Cuvieri, which 
is very abundant, and so constant in its form, that I do not 
hesitate to give this as a very distinct species. Its length does 
not exceed half an inch. 
3. HAMINAZA ELEGANS. 
H. testa elongata, longitudinaliter striata ; striis simplicibus, 
apertura ad sinistram anticé peritremate marginato in- 
structa. 
Habitat in Danmonie, et Cambrice mari. 
Shell elongate, striated longitudinally with simple strize, the 
left side of the aperture anteriorly, with a margined peritreme. 
Length three-quarters of an inch. 
My attention was first directed to this species by Mr. J. E. Gray, 
who received it from Devon. I have since obtamed it from 
Tenby and Swansea, as well as from the Devon coast, and have 
observed it in many collections confounded with the young of 
HI. Cuvieri. 
Genus 18. EucAmPeE. 
Testa tenuis, flexilis, cylindraceo-ventricosa ; spira canalicu- 
lata, plana ; apertura antice hians ; umbilicus nullus. 
Shell thin, flexible, cylindric-ventricose ; the spire canalicu- 
late, flat; the aperture gaping anteriorly ; umbilicus none. 
1. EucaAmre Donovanl. 
E. testa longitudinaliter antiquato-striolaté et subtransversim 
strigosa; strigis subundulatis. 
Bulla resiliens, Donov. Brit. Shells, t. 79. 
Bulla akera, Mont. Test. Brit. 219; M. & R. Trans. Linn. 
Soc. vin. 125. 
Habitat in mari, preesertim in eestuariis. 
