Fundulus cryptocatenatus, Fast, Hundt, Alley, and Sandel, 2025

Fundulus cryptocatenatus, Fast, Hundt, Alley, and Sandel , New Species

urn:lsid:zoobank.org:act:225A8354-4F7C-42EA-A50A-5189BF9B5A0D

Disjunct Studfish

Figs 6–7 View FIGURE 6 View FIGURE 7

Holotype. JFBM 50604 View Materials (1 alc.; female), from JFBM 39482, North Fork White River at State Road CC, 5 miles E of Dora , 36.752833, -92.151250, Ozark Co., Missouri, U.S.A., 26 May 2002. GoogleMaps

Paratopotype. JFBM 39482 View Materials (4 alc.), North Fork White River at State Road CC, 5 miles E of Dora , 36.752833, -92.151250, Ozark Co., Missouri, U.S.A., 26 May 2002 GoogleMaps .

Paratypes. CUMV 72258 View Materials (24 alc.), Amite River at LA 10 crossing, 4 mi. W of Darlington on LA Hwy 10 , 30.8894, -90.8459, East Feliciana Parish, Louisiana, U.S.A., 23 March 1990 GoogleMaps . CUMV 72387 View Materials (11 alc.), Amite River at LA 432, 1 mi. E Felixville on LA Hwy 432 , 30.945697, -90.859763, East Feliciana Parish, Louisiana, U.S.A., 23 March 1990 GoogleMaps . CUMV 37589 View Materials (26 alc.), Homochitto River on MS 550, E of Union Church , 31.6699, -90.7187, Lincoln Co., Mississippi, U.S.A., 4 April 1961 GoogleMaps . JFBM 30456 View Materials (5 alc.), Kings River at U.S. Highway 62, 20 miles E of Eureka Springs , 36.3942, -93.63613, Carroll Co., Arkansas, U.S.A., 2 May 1999 GoogleMaps . JFBM 30501 View Materials (6 alc.), Richland Creek, 25 miles upstream of County Road 79, 10.5 miles E of Fayetteville , 36.04688, -93.9719, Washington Co., Arkansas, U.S.A., 1 May 1999 GoogleMaps . JFBM 37968 View Materials (3 alc.), Strawberry River at U.S. Highway 167, 2 miles N of Evening Shade , 36.09896, -91.60879, Sharp Co., Arkansas, U.S.A., 27 May 2001 GoogleMaps . JFBM 40015 View Materials (5 alc.), Current River along sandbar at “Current View”, a local name , Clay Co., Arkansas, U.S.A., 27 May 2002 . 36.49321, -90.78024 Clay Co., Arkansas, U.S.A., 27 May 2002 GoogleMaps . JFBM 34874 View Materials (4 alc.), Sugar Creek at County Road 700N , 39.62433, -85.9299, Shelby Co., Indiana, U.S.A., 28 October 1999 GoogleMaps . JFBM 37773 View Materials (4 alc., 1 c.s.), Leatherwood Creek at County Road 700 N , 39.58276, -85.98431, Johnson Co., Indiana, U.S.A., 28 October 1999 GoogleMaps . JFBM 37659 View Materials (4 alc.), Trammel Fork at Old State Road, 1 mile NW of Red Hill , 36.752224, -86.2874985, Allen Co., Kentucky, U.S.A., 22 August 1999 GoogleMaps . JFBM 38260 View Materials (1 alc.), Otter Creek at State Road 1009, 1 mile N of Powersburg , 36.7130611 -84.9615444, Wayne Co., Kentucky, U.S.A., 27 June 2001 GoogleMaps . JFBM 45263 View Materials (30 alc.), Falling Timber Creek at State Highway 90, ca. 7.5 miles SE of Glasgow , 36.9241667, -85.8052778, Barren Co., Kentucky, U.S.A., 21 June 2007 GoogleMaps . JFBM 35849 View Materials (8 alc.), East fork of Amite River at MS Highway 584, about 6 miles SE of Liberty , 31.09844, -90.71954, Amite Co., Mississippi, U.S.A., 31 July 2000 GoogleMaps . JFBM 37334 View Materials (12 alc.), Homochitto River at MS Highway 550, 4 miles NE of Union Church , 31.6630554, -90.7205582 Lincoln Co., Mississippi, U.S.A., 31 July 2000 GoogleMaps . JFBM 40928 View Materials (8 alc.), Big Piney River at Highway 17, 3 miles W of Houston (Dog’s Bluff access) , 37.32661, -92.00334, Texas Co., Missouri, U.S.A., 26 May 2002 GoogleMaps . JFBM 41794 View Materials (11 alc.), Elk River at County Road H, 3.2 miles NE of Noel , 36.56805, -94.42557, McDonald Co., Missouri, U.S.A., 29 May 2003 GoogleMaps . JFBM 48546 View Materials (5 alc. 95%), Big River at Bootleg Access, 10 miles South of Potosi , 37.81263, -90.77162, Washington Co., Missouri., U.S.A., 3 October 1999 GoogleMaps . JFBM 48544 View Materials (7 alc. 95%), Huzzah Creek, at Saint Louis University’s Reis Biological Station , 37.9477778, -91.1775, Crawford Co., Missouri, U.S.A., 2 October 1999 GoogleMaps . JFBM 48547 View Materials (5 alc. 95%), Black River at Lesterville access off Peola Road, Missouri Department of Conservation access , 37.429, -90.82475, Reynolds Co., Missouri, U.S.A., 3 October 1999 GoogleMaps . JFBM 38200 View Materials (5 alc.), Hurricane Creek at State Road 87 (Clementsville Rd), 1.5 miles E of Cherry crossroads , 36.5977783, -85.7069473, Clay Co., Tennessee, U.S.A., 27 June 2001 GoogleMaps . JFBM 40569 View Materials (8 alc.), Turnbull Creek at Kingston Springs Road, 0.6 miles W of Kingston Road , 36.1012, -87.1263, Cheatham Co., Tennessee, U.S.A., 27 July 2002 GoogleMaps . JFBM 40993 View Materials (14 alc.), East Fork Stones River at US Highway 231, Walter Hill Dam, 10.5 mi N of Murfreesboro , 35.9416, -86.37674, Rutherford Co., Tennessee, U.S.A., 26 July 2002 GoogleMaps . UAIC 10247.17 View Materials (11 alc.), Current River, 0.5 mi S of “Current View” off Ripley Co. Rd. E, just S of Missouri State line , 36.4939, -90.78, Clay Co., Arkansas, U.S.A., 10 May 1991 . UAIC 10096.11 View Materials (17 alc.), Big Piney River at MO Hwy 17 at Dog’s Bluff Access, ca. 3 mi W of Houston , 37.32666, -92.0033, Texas Co., Missouri, U.S.A., 13 May 1991 GoogleMaps . UAIC 11582.11 View Materials (13 alc.), East Fork Stones River at TN Hwy 96, 1 mi SW of Lascassas , Rutherford Co., Tennessee, U.S.A., 5 December 1996 .

Diagnosis. Distinguished from other members in the complex as a distinct lineage as determined by molecular phylogenetic and population genomic evidence ( Hundt et al. 2016, this study) and by its limited distribution ( Figure 5B View FIGURE 5 ).

Description. Same as Fundulus catenatus . Meristic characters as follows: dorsal rays 13–17 (modally 15), anal rays 13–18 (modally 16), left pectoral rays 14–19 (modally 17), caudal rays 15–18 (modally 16), lateral scale rows 11–16 (modally 14), lateral scales 38–52 (modally 42) ( Table 1 View TABLE 1 ; Thomerson et al. 1969).

Distribution. In the Ozark Highlands, this species is native to tributaries of the Missouri River, direct tributaries to the Mississippi River, the upper Arkansas River, and the Black and White River drainages. In the Eastern Highlands, the species is known in the Cumberland and Green River drainages; in southwest Mississippi, tributaries of the Homochitto and Amite Rivers; and in Indiana, small tributaries to the East Fork White River.

Etymology. The common name, Disjunct Studfish, refers to the disjunct distribution of the species. Particularly emphasizing that this species is the most widely distributed of the studfishes. The word cryptocatenatus is from the Greek kruptos for hidden and the species name catenatus to indicate that this is a cryptic species, morphologically similar to F. catenatus .