122 Annals of the Carnegie Museum. 



21. Phalloptychus januarius (Hensel). 



Girardinus januarius Hensel, Arch, fiir Natiirgesch., XXXIV, 1868, p. 360; ihid., 

 XXXVI, 1870; EiGENMANN & EiGENMANN, Proc. U. S. Nat. Mus., XIV, 1891, 

 p. 65; Von Ihering, Siisswasserf. v. Rio Grande do Sul, 1893, p. 28; Stein- 

 DACHNER, Sb. Akad. Wiss. Wien, CXVI, 1907, p. 492. 



Pcecilia januarius Eigenmann, Ann. N. Y. Acad. Sci., VII, 1894, p. 636. 



Glaridodon januarius Berg, Anales Mus. Nac. Buenos Aires, V, 1897, p. 289 (in 

 part). 



Phalloptychus januarius Eigenmann, Proc. U. S. Nat. Mus., XXXII, 1907, p. 

 431; Repts. Princeton Univ. Exp. Patagonia, III, 1910, p. 458; Regan, Proc. 

 Zool. Soc. London, 1913, p. 999, PI. C figs. 7, 8 and text fig. 171 A. 



Girardinus iheringii Boulenger, Ann. Mag. Nat. Hist., Oct., 1889, p. 266; Eigen- 

 mann & Eigenmann, Proc. U. S. Nat. Mus., XIV, 1891, p. 65. 



? Gambusia gracilis Perugia, Ann. Mus. Civ. Stor. Nat. Genova., X, (2), 1891, p. 

 652. 



Range: Santa Catharina, Rio Grande do Sul, and Uruguay'. 



D. 9; A. 10; P. 10; V. 5; head 3.8-4; equal to from .82-87 of the 

 depth at the origin of the anal; this depth 3.1-3.6 in length to base of 

 caudal; caudal peduncle 6.4-6.7 in length and 1. 5-1. 7 in head. Eye 

 3.5 in head; 2 in caudal peduncle; equal to interorbital. Scales 29 

 in lateral series, 8 in transverse series. 



The vertical color-bands in this species are narrower and more 

 numerous than in the preceding. They vary in number from nine 

 to twelve. 



No specimens were secured by Mr. Haseman. This description is 

 based upon adult females from Rio Grande do Sul, received from Dr. 

 H. von Ihering (Ind. Univ. Mus. No. 4899). 



This species has been confused by Garman^ and others following 

 him, with Girardinus caudomaciilatiis Hensel (Phalloceros). Garman 

 considered the two to be identical, and, since Girardinus januarius 

 Hensel stood first in pagination, G. caudomaciilatus should ha^■e become 

 a synonym of G. januarius. Garman placed G. januarius in his new 

 genus Glaridodon, with Girardinus uninotatus Poey of Cuba as the 

 type. Glaridodon was later shown to be pre-occupied and replaced 

 by Garman* with Glaridichthys. It is quite evident from Carman's 

 figure of a male of '' Glaridodon januarius " (Plate VIII, fig. 15) showing 

 the antler-like processes, that his specimens were not this species, 

 but were G. caudomaciilatus. 



5 The Cyprinodonts, Mem. Mus. Comp. Zool., XIX, No. i, 1895, p. 42. 

 ^American Naturalist, XXX, 1896, p. 232. 



