38 IOWA STUDIES IN NATURAL HISTORY 
45. Lactophrys triqueter (Linneus). Trunk-fish; Chapin. 
Ostracion triqueter Linneus, Syst. Nat., ed. 10, 330, 1758, India. 
Lactophrys triqueter, Jordan & Evermann, op. cit., 1722, pl. 261, fig. 638; 
Evermann & Marsh, op. cit., 262, fig. 74. 
Three specimens (nos. 118, 119, and 120), 5 to 6 inches long, 
collected May 14, at Barbados. 
Head 3.75; depth 2; eye 2.2 in snout, less than interorbital 
width; D. 10; A. 10. 
Carapace trigonal, without spines. 
Color in alcohol dull greenish, darker at base of pectoral, 
dorsal and tip of caudal. 
46. Lactophrys tricornis (Linneus). Common Trunk-fish; 
Cowfish. 
Ostracion tricornis Linneus, Syst. Nat., ed. 10, 331, 1758. 
Lactopirys tricornis, Jordan & Evermann, op. cit., 1724, pl. 261, fig. 639; 
Evermann & Marsh, op. cit., 264, fig. 77. 
One specimen (no. 117), 9 inches long, obtained May 14, at 
Barbados. 
Head 4.2; depth 2.4; eye 2.1 in snout, somewhat less than 
interorbital width; D. 10; A. 10. Carapace trigonal, the angles 
carinate, a stout spine directed forward over each eye; an ab- 
dominal spine on each side directed backward. 
47. Spheroides testudineus (Linneus). Globe-fish; Tamboril. 
Tetraodon testudineus Linnfeus, Syst. Nat., ed. 10, 332, 1758. 
Spheroides testudineus, Jordan & Evermann, op. cit., 1734, pl. 265, figs. 
646 and 646a; Evermann & Marsh, op. cit., 269, colored plate 41. 
One specimen (no. 122), 8 inches long, taken May 15, at 
Antigua. 
Head 3; depth 2 in head; interorbital width 3.2 in head, 1.75 
in snout; D. 8; A. 6. Central part of body with prickles. 
48. Chilomycterus antennatus (Cuvier). Spiny Puffer. 
Diodon antennatus Cuvier, Mém. Mus., IV, 131, pl. 7, 1818. 
Chilomycterus antennatus, Jordan & Evermann, op. cit., 1750; Evermann 
& Marsh, op. cit., 272, colored plate 42. 
One specimen (no. 121), 6 inches long, taken May 4, at Bar- 
bados. 
Body covered with short, strong spines, two above the orbits 
and one on the middle of the forehead. D. 138; A. 10. 
