There was a time, not long ago, when Pseudojuloides cerasinus was considered a widespread species occurring all across the [...]
The cerasinus Group This group exemplifies the difficulties inherent to delimiting “species” of reef fishes. Currently, five are officially recognized, with several more distinctive populations in need of further study. There is very little overlap in their respective biogeographic ranges, save [...]
The mesostigma Group: Black-spot (mesostigma) & Lightning Pencil Wrasses (P. zeus) Two poorly studied and seldom encountered species are known in this group, both of which make rare appearances in the aquarium trade. P. mesostigma is the more well known of the two, with populations [...]
The severnsi Group: Royal (severnsi), African (edwardi), & Mauritian (erythrops) Pencil Wrasses The three described species in this group share a number of easily observable characters: 1) A black “hood” covering the anterodorsal portions of the body. 2) A pair of parallel blue [...]
The elongatus Group: African (argyreogaster), Japanese (cf elongatus), Western (cf elongatus) & Eastern Australian (elongatus) Seaweed Wrasses The four known variants in this group occupy widely separated parts of the globe and are unique amongst Pseudojuloides for preferring shallow-water [...]
The slender and elegant Pseudojuloides wrasses represent some of the most colorful and sought after species in the reef aquarium hobby, but, despite their enduring popularity, the numerous described species and undescribed regional variants are poorly known fishes. Their interesting biogeographic [...]
