Family/species

Revised number of specimens

Long sizes (mm)

Known distribution

New distribution

TROCHIDAE Rafinesque, 1815.

Mx.

Min.

A.

Sd.

Monilea patricia

(Philippi, 1851).

12

10.33

4.21

7.05

1.98

West America to Nicaragua (Corintos) and Colombia. (A. Myra Keen 1971, WoRMS: World Register of Marine Species 2013 and WMSDB: Worldwide Mollusc Species Data Base 2013.)

Majahua 16˚47'39.62''N y 99˚50'29.02''W Tlacopanocha 16˚50'41.53''N y 99˚54'25.02''W

LITTORINIDAE Children, 1834.

Nodilittorina

(Echinolittorina) peruviana

(Lamarck, 1822).

3

6.41

6.1

6.29

0.16

Central America, Costa Rica, Panama (Western Panama, Chiriqui Bay), Ecuador (Galapagos Islands), Peru (north of Punta Peña Negra, Talara) and Chile (Isla Serrano). (A. Myra Keen 1971, Carol Skoglund 2002, WoRMS: World Register of Marine Species 2013 and WMSDB: Worldwide Mollusc Species Data Base 2013.)

Parque de la Reina

16˚50'58.27''N y 99˚54'01.85''W

MURICIDAE Follows Vokes, 1996.

Aspella Aspella) hastula

(Reeve, 1844).

1

Costa Rica (Cocos Island), Panama (Gulf of Chiriqui), Ecuador (Galapagos Islands) and Colombia (Malpelo Island). (A. Myra Keen 1971, Carol Skoglund 2002, WMSDB: Worldwide Mollusc Species Data Base 2013 and Discover Life 2013.)

Tlacopanocha 16˚50'41.53''N y 99˚54'25.02''W

BUCCINIDAE Rafinesque, 1815.

Engina pulchra

(Reeve, 1846).

1

6.45

6.45

6.45

North of El Salvador, Panama (Fortkobbe beach), Colombia (Gorgona Island) and Ecuador (Galapagos Islands) (A. MyraKeen 1971, Carol Skoglund 2002 and Discover Life 2013.)

Muelle 16˚50'58.27''N y 99˚54'01.85'W