Homalopoma nana
Encyclopedia
Homalopoma nana is a species of a minute sea snail
Sea snail
Sea snail is a common name for those snails that normally live in saltwater, marine gastropod molluscs....

, a marine
Marine (ocean)
Marine is an umbrella term. As an adjective it is usually applicable to things relating to the sea or ocean, such as marine biology, marine ecology and marine geology...

 gastropod mollusc in the family
Family (biology)
In biological classification, family is* a taxonomic rank. Other well-known ranks are life, domain, kingdom, phylum, class, order, genus, and species, with family fitting between order and genus. As for the other well-known ranks, there is the option of an immediately lower rank, indicated by the...

 Colloniidae
Colloniidae
Colloniidae is a family of small sea snails with calcareous opercula, marine gastropod mollusks in the clade Vetigastropoda.- 2005 taxonomy :...

.

Original description

Homalopoma nana was originally discovered and described as Argalista nana by Harold John Finlay
Harold John Finlay
Harold John Finlay was a New Zealand palaeontologist and conchologist. He was born in Comilla, India , on 22 March 1901....

 in 1930. Finlay's original text (the type description) reads as follows:
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