, oe a re 
9 ei et Bl Sa an ald 
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Marcu, 1914. List or Fisues or Costa Rica — MEEK. 117 
than those found in the larger streams in or near the lowlands. With- 
out the opportunity of examining material from the salt or brackish 
water of Costa Rica, and after comparing the material at my command 
with specimens from the salt water at Vera Cruz, Mexico, it seems 
best to recognize these inland forms as a variety or subspecies of the 
preceding. 
The females and many of the males of these inland forms usually 
have a black spot at the base of the middle dorsal rays, the free margin 
of the dorsal is straight or slightly convex, and the caudal fin is sub- 
truncate, and in these respects this subspecies presents a few trifling 
differences from the species. On many specimens from salt and brack- 
ish water some of the scales have a dark spot which forms lines along 
the rows of scales. These spots are not present on the specimens from 
the uplands and are scarcely present on some from the larger lowland 
streams. In both the species and subspecies some of the larger males 
have a very high dorsal fin. On many of the males, especially from 
the larger streams, the basal half of the caudal is black, or with black 
blotches; on some of these the basal half of the dorsal is also black. In 
general, the upland specimens are more uniform in coloration than 
those from the lowland streams. 
Patarra (17), 52 to 80 mm. (Alfaro); Rio Maria Aguilar, San José 
(8), 48 to 80 mm.; Rio Tiribi, San José (275), 30 to 70 mm.; Rio Grande, 
Orotina, April 22 (29), 28 to 80 mm.; Rio Machuca, Orotina (20), 30 to 
60 mm.; Turrubales (75), 30 to 90 mm.; Jesus Maria (2), 43 mm.; 
Virginia (5), 45 to 72 mm.; Zent, April 12 (20), 37 to 92 mm.; La Victoria 
(24), 28 to 105 mm.; La Junta (24), 60 to 110 mm.; Parismina (11), 
43 to 90 mm.; Guapilis (35), 44 to 95 mm.; Turrubales (3), 64 to 78 mm. 
(Alfaro); Rio Maria Aguilar, San José (20), 30 to 60 mm. (Alfaro); 
Chitaria (1), 53 mm. (Alfaro); Turrialba (1), 50 mm. (Alfaro); Tucur- 
rique (4), 65 to 120 mm. (Alfaro); Tiribi (2), 64 to 70 mm. (Alfaro); 
Las Lajas, Taboga (12), 35 to 45 mm. (Alfaro); Rio Higuerén (30), 
37 to 83 mm. (Alfaro). 
Family Mugilidez. 
Joturus pichardi Poey. Bobo. 
Joturus pichardt Poey, Mem., 1, 263, 1861 (Cuba);— Jordan & 
Evermann, Bull. 47, U. S. Nat. Mus., 1896, 821 (Costa Rica) ;— 
Meek, Pub. Field Mus., Zoél. Ser., vir, 1907, 148 (Reventazon 
River; El Sardinal, Santa Clara, Costa Rica). 
