Family Cerithiidae (horn shells)

This page links to species in the family Cerithiidae, commonly called horn shells, from Kwajalein. Many species are sand dwellers and some are extremely abundant, among the most common snails in sandy areas. While many species normally have white shells, even these will often sometimes vary considerably in color. Overall, the group has not been thoroughly studied, and there are not many references out there for species identification. Many of our names must be regarded as tentative, and some of the unknowns are likely variations of some of the others. We welcome suggestions or corrections at uwkwaj@yahoo.com. (Click on a thumbnail for pages with larger images.)


Bittium impendens


Bittium sp. 1

Cerithium atromarginatum

Cerithium cf alutaceum

Cerithium claviforme

Cerithium columna

Cerithium columna prodita


Cerithium echinatum


Cerithium egenum

Cerithium interstriatum

Cerithium cf lifuense

Cerithium munitum

Cerithium nesioticum

Cerithium nodulosum

Cerithium pacificum

Cerithium placidum

Cerithium punctatum

Cerithium rostratum

Cerithium salebrosum

Cerithium cf tenellum

Cerithium zebrum

Cerithium sp. 1

Cerithium sp. 2

Cerithium sp. 3

Cerithium sp. 4

Cerithium sp. 5

Cerithium sp. 6

Cerithium sp. 7

Cerithium sp. 9

Cerithium sp. 10

Cerithium sp. 11

Cerithium sp. 15

Cerithium sp. 16

Cerithium sp. 17

Cerithium sp. 19

Cerithium sp. 20

Cerithium sp. 22

Cerithium sp. 23

Cerithium sp. 24

Cerithium sp. 25

Cerithium sp. 26

Cerithium sp. 27

Cerithium sp. 28

Cerithium sp. 29


Cerithium sp. 30

Cerithium? sp. 31

Cerithium? sp. 32

Cerithium sp. 33


Clypeomorus batillariaeformis

Clypeomorus brevis

Clypeomorus nympha

Clypeomorus sp. 1

Limatium pagodula

Pictorium koperbergi

Pseudovertagus nobilis

Rhinoclavis articulata

Rhinoclavis aspera

Rhinoclavis cf cedonulli

Rhinoclavis diadema

Rhinoclavis fasciata

Rhinoclavis sinensis

Royella sinon

Kwajalein Underwater home

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