| Species | Number of specimens | Known distribution | New distribution |
| Ischnochiton (I.) muscarius | 71 items | West Coast of Mexico, Mexican Tropical Pacific (Gulf of California, Sonora Venado Island, in La Ventosa Oaxaca, State of Guerrero in the MPR No. 32 and Zihuatanejo, Revillagigedo Archipelago and Isla Socorro). [5,10,12,14,18-20,25-29] | Playa Ventura 16˚32′8.3′′ 99˚54′44.6′′ Salinas 16˚35′49.56′′ 99˚05′43.71′′ Punta Maldonado 16˚19′35.49′′ 98˚34′12.65′′ |
| Stenoplax (S.) rugulata | 7 items | México; (Gulf of California and the state of Guerrero on the MPR No. 32), Ecuador (Galapagos Islands), Perú, Nicaragua, Costa Rica, Panamá and Western Atlantic. [5,10,11,13,18,26,29] | Punta Maldonado 16˚19′35.49′′ 98˚34′12.65′′ |
| Stenoplax (S.) limaciformis | 13 items | México; (Gulf of California, State of Guerrero in the MPR No. 32, in Puerto Angelito, Puerto Escondido, Estacahuite, Oaxaca) to Perú (Islas Lobos Outside), Ecuador (Punta Ancon) and the Caribbean. [4,5,10-14,18,19,25,26,28,29] | Playa Ventura 16˚32′8.3′′ 99˚54′44.6′′Casa de Piedra 16º32′10.15′′ 98º53′47.35′′, Salinas 16˚35′49.56′′ 99˚05′43.71′′Punta Maldonado 16˚19′35.49′′ 98˚34′12.65′′ |
| Stenoplax (S.) mariposa | 2 items | México; (Golfo de California, Estado de Guerrero en la MPR No. 32, Oaxaca en Puerto Angelito, Puerto Escondido, Estacahuite), Perú (Islas Lobos Afuera), Ecuador (Punta Ancón) y en el Caribe. [4,7,10-14,18,37,38] | Punta Maldonado 16˚19′35.49′′ 98˚34′12.65′′ |
| Lepidozona (L.) serrata | 1 item | México; (Gulf of California, south of Mazatlán, Sinaloa and to Kino Bay, Sonora, State of Guerrero in the MPR No. 32 and Chachacual-Jicaral, Huatulco in Oaxaca, Nayarit Marias Islands). [4,5,10-14,18,26,28,29,37] | Punta Maldonado 16˚19′35.49′′ 98˚34′12.65′′ |
| Callistoplax (C.) retusa | 2 items | México, (State of Guerrero in the MPR No. 32 and Zihuatanejo, Chachacual-Jicaral Estacahuite Huatulco and Oaxaca, Nayarit Marías Islands) and Panamá.[4,8,10,11,12,14,18-20,25,26,28,29] | Peñitas 16˚33′14.4′′ 98˚46′22.0′′ Punta Maldonado 16˚19′35.49′′ 98˚34′12.65′′ |
| Chaetopleura (C.) lurida | 46 items | México; (Gulf of California, Tecolote, Cabo San Lucas and San Francisquito Bay, Puerto Angelito, Puerto Escondido in Oaxaca, Guerrero in the MPR No. 32, Zihuatanejo and Revillagigedo Islands) from Revillagigedo Islands to northern Colombia in Gorgona Island, Costa Rica in Playa de Cocos and Perú. [4,6,10-14,18-20,25,26,28,29,37] | Punta Maldonado 16˚19′35.49′′ 98˚34′12.65′′ |
| Chaetopleura (C.) hanselmani | 2 items | México; (Golfo de California, Mazatlán, Sinaloa; Estado de Guerrero en la MPR No. 32; Oaxaca en Casa Mixteca, Huatulco), Colombia (Jobi y Quibdo), Ecuador (Islas Galápagos) y Perú (Isla Lobos de Afuera). [4,5,11,14,18,25,26,28,37] | Salinas 16˚35′49.56′′ 99˚05′43.71′′ Punta Maldonado 16˚19′35.49′′ 98˚34′12.65′′ |
| Tonicia (T.) forbesii forbesii | 1 item | México; (Jalisco Cuastecomate Bay, Oaxaca: Chachacual-Jicaral, and Estacahuite Huatulco, State of Guerrero in the MPR No. 32 and Zihuatanejo), El Salvador (Punta Remedios, The Cóbano), Nicaragua, Costa Rica, Panamá (Bocas del Toro), Perú and Ecuador (Galápagos Islands). [9-12,18,20,26,28,39] | Punta Maldonado 16˚19′35.49′′ 98˚34′12.65′′ |
| Lepidochitona (L.) salvadorensis | 3 items | México, (State of Guerrero in the MPR No. 32 and Oaxaca: Puerto Escondido, Huatulco and Puerto Ángel), El Salvador (The Cóbanos, Sonsonate and maculi Beach, La Unión). [31,14,18,26,28] | Casa de Piedra 16º32′10.15′′ 98˚53′47.35′′ Salinas 16˚35′49.56′′ 99˚05′43.71′′ |
| Lepidochitona (L.) beanii | 5 items | México; (Gulf of California, Santa Catalina, Puertecitos, Mazatlán, State of Guerrero in the MPR No. 32), Perú (Isla Lobos de Afuera), Panamá and the Caribbean. [5,10-13,18] | Salinas 16˚35′49.56′′ 99˚05′43.71′′ |
| Lepidochitona (L.) hartwegii | 2 items | Alaska, USA also along the West Coast, North Port Orford, Oregon, Mexico, (California in Sausalito, Punta Abreojos, expands distribution more towards the West Coast of the Peninsula of Baja California Sur in Devil 'slide and La Jolla, Rocks Stash and state of Guerrero on the MPR No. 32). [4,5,11,12,18,19,25,26] | Salinas 16˚35′49.56′′ 99˚05′43.71′′ Punta Maldonado 16˚19′35.49′′ 98˚34′12.65′′ |
| Lepidochitona sp. 1 | 8 items | México, State of Guerrero in the MPR No. 32 and Oaxaca: Estacahuite). [14,18,25,26] | Salinas 16˚35′49.56′′ 99˚05′43.71′′ Punta Maldonado 16˚19′35.49′′ 98˚34′12.65′′ |
| Lepidochitona sp. 2 | 76 items | México, (State of Guerrero in the MPR No. 32). [18,25,26] | Playa Ventura 16˚32′8.3′′ 99˚54′44.6′′ Punta Maldonado 16˚19′35.49′′ 98˚34′12.65′′ |