Palaemonetes antrorum

Palaemonetes antrorum Benedict

Palaemonetes antrorum Benedict, 1896:615.—Kingsley, 1899: 718.—Eigenmann, 1900:228, 230; 1909:202.—Neher, 1902:96–100, figs. 2–7.—Ulrich, 1902:83, 85, 93–95, 100, pl. 17.—Hay, 1903:433.—Calman, 1909:93.—Ortmann, 1918:838.—Uhlenhuth, 1921:75, 76, 79, 85, 90, 96, 101.—Kemp, 1925:317.—Spandl, 1926:90, 141.—Chappuis, 1927:87. 150.—Mohr, 1939:196; 1948a:17.—Chace, 1943:34.—Holthuis, 1949:87–89; 1950:11; 1952:202, 203; 1955:51.—Pennak, 1953:458, 466.—Dearolf, 1953:228.—Maccagno and Cucchiari, 1957:212.—Nicholas, 1960:134.—Vandel, 1964:179; 1965:140.—Fleming, 1969:448, 449, 451, fig. 14.—Reddell and Mitchell, 1969:17, 22, 24, 27, 28, 30, 31, 36, 37, 39, 46, 47.—Davis, 1971:82.—Dobkin, 1971:285.—McNatt, 1971:82.—Longley, 1975:119, 120, 305.—Strenth, 1976:1, 2, 5, 9, 10, 12–15, figs. 4, 6.

Palaemonetes.—Calman, 1909:97 [in part].—Jeannel, 1943:267 [in part].

Palaemonetes antorum.—Mohr, 1948b:109.—Powell, 1970:280. [Erroneous spelling.]

Palaemonetes (Alaocaris) antrorum.—Holthuis, 1949:88–91, fig. 1a–e; 1950:11; 1952:200, 202–207, pls. 49, 50, 51a–d; 1955:51 [by implication], fig. 26; 1956a:58.—Chace, 1954: 323; 1959:880, fig. 31.11.—Balss, 1955:1311.—Smalley, 1964a:231 [by implication].—Reddell, 1965:161.—Husmann, 1966:420.—Reddell and Mitchell, 1969:11, 21, 28.—L. E. Fleming, 1969:444, 450.—Burukovskii, 1974, fig. 100.—Longley, 1975:304.

Palaemonetes (Alaocaris).—Balss, 1957:1548.

Palemonetes antrorum.—Reddell and Mitchell, 1969:30 [erroneous spelling.]

DIAGNOSIS.—Eyes without pigment and faceted cornea. Rostrum without ventral teeth. Second pereiopod differing only slightly from first. Lateral margin of lateral ramus of uropod with only one spine, lacking movable one.

SIZE.—Total length 18 mm (Holthuis, 1952:205).

TYPES.—Syntypes, USNM 19326.

TYPE-LOCALITY.—Artesian well at San Marcos, Hays County, Texas, U.S.A.

RANGE.—U.S.A. Restricted to the following localities along the Balcones Escarpment in Texas.

Hays County: (1) type-locality; (2) Beaver Cave, San Marcos (Uhlenhuth, 1921:90); (3) Ezell's Cave, San Marcos (Uhlenhuth, 1921:85); (4) Frank Johnson's Well, San Marcos (Uhlenhuth, 1921:85); (5) Wonder Cave (Reddell and Mitchell, 1969:11); (6) San Marcos Springs (Powell, 1970:280). Uvalde County: (7) Carson Cave, 4 mi (6 km) SW of Montell, 14 Jul 1974, S. S. Sweet and D. P. Hector, coll.

The last named locality (7), situated some 130 mi (216 km) WSW of San Marcos, represents a noteworthy extension of the range of the species.

ECOLOGICAL

Palaemonetes antrorum Benedict, 1896

Palaemonetes antrorum Benedict, 1896:615.

Palaemonetes (Alaocaris) antrorum.—Holthuis, 1949:89, 1952: 203, 1955:49.—Chace, 1954:323—Smalley, 1964:231.—Fleming, 1969:444.—Villalobos and Hobbs, 1974:15.

This species is known from the subterranean waters within the city of San Marcos; also from Ezell’s Cave within the city limits of San Marcos, Hays County, Texas (Holthuis, 1952).