Topic
Pylojacquesidae
About: Pylojacquesidae is a research topic. Over the lifetime, 3 publications have been published within this topic receiving 59 citations. The topic is also known as: Lemaitreopsis holmi.
Papers
TL;DR: The new family Pylojacquesidae is diagnosed, and its type genus and species are described and illustrated, and the possible phylogenetic relationships of the new genus are discussed.
Abstract: A new family, Pylojacquesidae, is proposed for Pylojacquesia colemani, new genus and species. Although the new family, with its monotypic genus, exhibits characters of both superfamilies of the Section Paguridea, it is tentatively assigned to the Paguroidea until additional material becomes available that would permit a more detailed study. The new family Pylojacquesidae is diagnosed, and its type genus and species are described and illustrated. The possible phylogenetic relationships of the new genus are discussed. A key to all the families of hermit crabs is presented.
25 citations
1 Jan 2012
TL;DR: This chapter briefly discusses that the Infraorder Anomura Macleay, 1838, is now well established, as is its sister group relationship to the infraorder Brachyura; together forming the Meiura of Scholtz & Richter.
Abstract: This chapter briefly discusses that the Infraorder Anomura Macleay, 1838. Anomura, of all the decapod infraorders, has had a particularly unstable taxonomic history, with groups such as the dromiacean crabs and the thalassinidean shrimps being variously included and excluded over the years. The name for the group has also been vigorously debated. The monophyly of Anomura is now well established, as is its sister group relationship to the infraorder Brachyura; together forming the Meiura of Scholtz & Richter. Anomura, as currently conceived, comprises 7 superfamilies, 20 families, over 200 genera, and 2200 species. Anomura exhibit a great diversity in body form. In the asymmetrical hermit crabs (Paguroidea: Paguridae, Diogenidae, Coenobitidae, Parapaguridae, and Pylojacquesidae), the pleon is generally soft, membranous, and dextrally twisted. In the hermit crab family, Pylochelidae, however, the pleon is well developed and symmetrical, and the segmentation is clearly defined, so that the general appearance is more crayfish-like. Keywords: dromiacean crabs; hermit crab family; Infraorder Anomura Macleay; infraorder Brachyura; pleon; thalassinidean shrimps
19 Apr 2007
TL;DR: Lemaitreopsis holmi is unique in the development of the external distal angle of the ischium of the third maxilliped into a very large, stout, spine-like hook.
Abstract: A new genus, Lemaitreopsis, and a new species, Lemaitreopsis holmi, assigned to the paguroid family Pylojacquesidae are described and illustrated. The new taxa are based on a single female specimen collected from off the Isle of Pines, New Caledonia. The generic placement in the heretofore monotypic Pylojacquesidae is based primarily on the development of a median projection on the sternite of the third maxillipeds and on the calcified, posteriorly directed projection on the first pleonal sternite. Both characters are unknown in other paguroid families. Lemaitreopsis holmi is unique in the development of the external distal angle of the ischium of the third maxilliped into a very large, stout, spine-like hook.
Performance Metrics
| Year | Papers |
|---|---|
| 2012 | 1 |
| 2007 | 1 |
| 2001 | 1 |