First record of the lithobiomorph centipede Lamyctes emarginatus (Newport, 1844) (Lithobiomorpha: Henicopidae) from Mexico [Primer registro del ciempi�s introducido Lamyctes emarginatus (Newport, 1844) (Lithobiomorpha: Henicopidae) para M�xico]

The first known record from Mexico of the lithobiomorph centipede Lamyctes emarginatus (Newport, 1844) is reported. The specimens were collected near Juanacatl�n, Jalisco, M�xico. Lamyctes emarginatus was first described from New Zealand and is believed to be an Australasian native �2013, Sociedad Venezolana de Entomolog�a

First record of the lithobiomorph centipede Lamyctes emarginatus (Newport, 1844) (Lithobiomorpha: Henicopidae) from Mexico [Primer registro del ciempiés introducido Lamyctes emarginatus (Newport, 1844) (Lithobiomorpha: Henicopidae) para México]

The first known record from Mexico of the lithobiomorph centipede Lamyctes emarginatus (Newport, 1844) is reported. The specimens were collected near Juanacatlán, Jalisco, México. Lamyctes emarginatus was first described from New Zealand and is believed to be an Australasian native ©2013, Sociedad Venezolana de Entomología

Some ants genera (Hymenoptera: Formicidae) observed in three isles at the mouth of the Gulf of California, Mexico [Algunos géneros de hormigas (Hymenoptera: Formicidae) observados en tres islas de la boca del Golfo de California, México]

This it is the first study that reports the presence of ants genera Camponotus, Dorymyrmex, Forelius, Paratrechina and Leptothorax in the Isabel and Marietas islands of the Gulf of California, Mexico. © 2005, Sociedad Venezolana de Entomología

Guide for the determination of centipedes families (Myriapoda: Chilopoda) from Mexico [Guía para la determinación de las familias de ciempiés (Myriapoda: Chilopoda) de México]

The number of species of Chilopoda (Myriapoda) known to exist in Mexico is 177. Centipedes are generalist predators that feed on soil mesofauna and macrofauna, are an important part of soil and leaf litter fauna from different ecosystems, and are a supplement of mammals and birds diets. However, knowledge about their diversity and distribution in the country is incomplete, possibly due to the lack of specialists, poor access to information and the scarcity of studies to review orders, genera and species. To support the study and better understanding of the group, this paper provides a visual guide supported with descriptions of some characters from each family to determine the four orders (Scutigeromorpha, Lithobiomorpha, Scolopendromorpha and Geophilomorpha) and 16 families that occur in the country. This is the first paper that presents a complete identification guide from families of Mexican centipedes according to their external morphology

Some ants genera (Hymenoptera: Formicidae) observed in three isles at the mouth of the Gulf of California, Mexico [Algunos g�neros de hormigas (Hymenoptera: Formicidae) observados en tres islas de la boca del Golfo de California, M�xico]

This it is the first study that reports the presence of ants genera Camponotus, Dorymyrmex, Forelius, Paratrechina and Leptothorax in the Isabel and Marietas islands of the Gulf of California, Mexico. � 2005, Sociedad Venezolana de Entomolog�a

Guide for the determination of centipedes families (Myriapoda: Chilopoda) from Mexico [Guía para la determinación de las familias de ciempiés (Myriapoda: Chilopoda) de México]

The number of species of Chilopoda (Myriapoda) known to exist in Mexico is 177. Centipedes are generalist predators that feed on soil mesofauna and macrofauna, are an important part of soil and leaf litter fauna from different ecosystems, and are a supplement of mammals and birds diets. However, knowledge about their diversity and distribution in the country is incomplete, possibly due to the lack of specialists, poor access to information and the scarcity of studies to review orders, genera and species. To support the study and better understanding of the group, this paper provides a visual guide supported with descriptions of some characters from each family to determine the four orders (Scutigeromorpha, Lithobiomorpha, Scolopendromorpha and Geophilomorpha) and 16 families that occur in the country. This is the first paper that presents a complete identification guide from families of Mexican centipedes according to their external morphology

A second locality in Jalisco, M�xico, for the centipede ectonocryptoides quadrimeropus Shelley & Mercurio, 2005 (Scolopendromorpha: Scolopocryptopidae: Ectonocryptopinae)

[No abstract available

Age and growth of Astraea undosa wood (Mollusca: Gastropoda) in Baja California, Mexico

Although the marine gastropod Astraea undosa is becoming an important fishery resource in Baja California, limited data are available on its growth. We verified formation of the annual opercular growth rings and compared the age-growth relationship for both sexes of a natural population in Todos Santos Bay. The hialine (low growth) ring was formed during spring- summer and the opaque (high growth) ring during autumn-winter. Growth patterns differed among sexes, the males having higher growth

Age and growth of Astraea undosa wood (Mollusca: Gastropoda) in Baja California, Mexico

Although the marine gastropod Astraea undosa is becoming an important fishery resource in Baja California, limited data are available on its growth. We verified formation of the annual opercular growth rings and compared the age-growth relationship for both sexes of a natural population in Todos Santos Bay. The hialine (low growth) ring was formed during spring- summer and the opaque (high growth) ring during autumn-winter. Growth patterns differed among sexes, the males having higher growth

Rediscovery and new data for oroperipatus eisenii (Wheeler, 1898) from mexico (Onychophora: Peripatidae)

[No abstract available