Sequence divergences of Coquille River suckers from the others are 2.6-4.2%, suggesting a Pliocene separation based on catostomid
divergence estimates in Unmack and others (2014).
The pharyngeal bones and teeth of catostomid
Razorback sucker (Xyrauchen texanus) is an endemic catostomid
of the Colorado River Basin.
is a rare, potadromous species of Catostomid
fish of Towns County that is currently under review for listing on the endangered species list.
The Blue Sucker, Cycleptus elongatus (Lesueur) is a long, compressed and streamlined catostomid
that occurs in the Mississippi River basin from Pennsylvania to central Montana and south to Louisiana, Texas, New Mexico, and Mexico (Page & Burr 2011).
Drift ecology of western catostomid
larvae with emphasis on Warner Suckers, Catostomus warnerensis (Teleostei).
Tetraploidy and the evolution of catostomid
The acanthocephalan genus Neoechinorhynchus in the catostomid
fishes of North America, with descriptions of two new species.
The osteocranium of the catostomid
fish, Catostomus macrocheilus--a study in adaptation and natural relationship.
Although the pharyngeal teeth of small catostomids
may resemble those of small cyprinids, small catostomids
often have a fissure at the tip, whereas adult catostomid
pharyngeal teeth have a broad, flattened tip.
For example, catostomid
fishes represent a tetraploid lineage that originated about 50 mya, but only about 50% of isozyme loci in species of this group have been diploidized (Ferris 1984).
Interestingly, increased abundance of Creek Chubsuckers in a northwestern Mississippi stream in autumn (Shields et al, 1994) may have reflected upstream movements to the study site, and it may be that elimination of downstream connectivity inhibits colonization and movements of this small catostomid
. Similarly, Grass Pickerel have been previously found in greater abundance and size in unfragmented tributaries (Herbert and Gelwick, 2003; Guenther and Spacie, 2006), which may also reflect the proclivity of this species to move between larger downstream rivers and off-channel headwater habitats.