The basket star Gorgonocephalus eucnemis is a common ophiuroid resident of rocky bottoms and artificial substrata at depths of 8 to 1,850 m, and in the eastern Pacific is distributed from the Bering Sea to San Diego, USA. This paper presents a new record of this species obtained with a submersible at Guadalupe Island, Mexico (29.10976°N, −118.25417°W), which extends its distribution range over 400 km, and corresponds to the southernmost site of occurrence of this ophiuroid in the eastern Pacific.

The blue and yellow damselfish Chromis limbaughi is a species protected by the Mexican federal government due to its commercial relevance as an aquarium fish. In this paper we present new records of the species at 17 locations north of its accepted northernmost distribution limit. Because of the abundance, relative occurrence, and the presence of adults and juveniles in the new sites, these might represent reproductive populations. It is probable that the species has settled successfully there in recent years by taking advantage of the warming of the region reported in the last decade.

The ringed basket star Astrodictyum panamense is an ophiuroid resident of coral and rocky reefs from the central and southern Gulf of California and oceanic islands from the eastern Pacific. This paper presents new records of this species obtained from fieldwork and internet sources, and includes its northernmost and westernmost occurrence in the eastern Pacific (Adair Bay, Gulf of California, and Tortugas Bay, on the Pacific side of Baja California, respectively), as well as Roca Partida Island, in the Revillagigedo Archipelago.