Original diagnosis by Hartman (1959: 408-409): "Pointed setae and hooded hooks are present in both thorax and ... [details]
Original diagnosis by Hartman (1947: 437-438): "The thorax and abdomen are not distinctly separable in external ... [details]
Mission and Newport Bays, and Anaheim Slough in Southern California. Also in San Diego, California. [details]
The species inhabits mud flats in low, intertidal zones. [details]
Not stated by the author. The name of the genus seems to be composed by the Greek prefix a-, meaning 'not' or ... [details]
"Leiocapitella may be considered intermediate between Leiochrus Ehlers and Pseudocapitella Fauvel, hence the ... [details]
Feminine. Not originally stated but Capitella is feminine and Hartman (1947) used 'glabra' rather than 'glabrus'. [details]
The species Areniella filiformis Verrill, 1874, the type species of the genus, was considered by Hartman (1947: ... [details]
The synonymy between Isomastus Gravier, 1911 and Capitella Blainville, 1828 was first suggested by Augener (1932: ... [details]
One mile northwest of San Gabriel Bay, Espiritu Santo Island, Gulf of California, Mexico, 20-35 fathoms, in mud [details]