. Bulletin - United States National Museum. avity, and telson spines, was becauseof failure to initially separate these two closely allied species. Dearolfsrecord for S. clantoni from Schneiders Cave (Dearolf, 1953) was basedon an erroneous determination. I have examined the same materialand found it conspecific with S. bifurcatus. Stygonectes russelli, new species Figures 23, 24 Stygonectes flagellatus (Benedict).—Hubricht, 1943, p. 705 (in part).Stygonectes species.—Reddell, 1965, p. 160 (in part).—Holsinger, 1966, p. balconis Hubricht.—Holsinger, 1966, pp. 113-116 (in part).
. Bulletin - United States National Museum. avity, and telson spines, was becauseof failure to initially separate these two closely allied species. Dearolfsrecord for S. clantoni from Schneiders Cave (Dearolf, 1953) was basedon an erroneous determination. I have examined the same materialand found it conspecific with S. bifurcatus. Stygonectes russelli, new species Figures 23, 24 Stygonectes flagellatus (Benedict).—Hubricht, 1943, p. 705 (in part).Stygonectes species.—Reddell, 1965, p. 160 (in part).—Holsinger, 1966, p. balconis Hubricht.—Holsinger, 1966, pp. 113-116 (in part). 96 NATIONAL MUSEUM BULLETIN 2 59 Material examined TEXAS.—Coryell Co.: Tippits Cave, female holotype, 2 female paratypes, D. Mc-Kenzie, Oct. 4, 1964 (USNM); 3 female paratypes, J. Reddell and D. McKenzie,Mar. 9, 1963 (JRH). Additional material from Texas (in JRH unless otherwiseindicated): Bell Co.: Nolan Creek Cave, D. McKenzie, Oct. 4, 1964; KendallCo.: Cascade Cave, L. Hubricht and J. Mackin, May 15, 1940 (LH); Kerr Co.:. Figure 23.—Stygonedes russelli, new species. Female ( mm), Harrells Cave, ,b, gnathopods 1,2; c,d, uropods 1,2; h, coxal plate of pereopod 3; i-l, pereopods 4,5,6,7m, telson; n, abdominal side plates; o, dentate part of left mandible; p, right mandibleq, lower lip; r, maxilliped. Female ( mm), Tippits Cave, Tex.: e,f, antennae 1,2g, uropod 3. SUBTERRANEAN AMPHIPOD STYGONECTES 97 Stowers Cave, J. Reddell and B. Bell, Mar. 20, 1965; Mason Co.: Zesch RanchCave, J. Reddell, Nov. 8, 1964; San Saba Co.: Gorman Cave, J. Reddell and , Mar. 15, 1963; Harrells Cave, K. Kunath and J. Reddell, Aug. 31,1963; Travis Co.: Adobe Springs Cave, W. Russell and J. Porter, Oct. 4 and 10,1964; Balcones Sink Cave, W. Russell, July 31, 1964, and June 30, 1965; Cave X,J. Reddell, Jan. 3, 1964; Dead Dog Cave No. 2, W. Russell, October 1963, andMar. 10, 1964; Irelands Cave, W. Russell, Mar. 14, 1964; Salamander Cave, , spring of 1963
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