FISTULARIIDA. — XLIV. 97 
Famity XLIV. FISTULARIIDAS. (THe Trumper- 
Fisu&s.) 
Body elongate; naked, with some bony plates; snout produced 
in a long dilatable tube, with the short jaws at the end; teeth 
minute; no spinous dorsal; C. forked, its middle rays produced in 
a long filament; V. small, with 6 rays. Tropical seas; one genus, 
8 species. 
107. FISTULARIA Linneus. (Lat., fistula, a tube.) 
237, F. tabaccaria L. Trumpet-risu. Brown, with blue 
spots. Head 24. D, 14. A.13. Warm seas, rarely N. to N. Y. 
(Lat., pertaining to tobacco-pipe.) 
Famity XLV. GASTEROSTEHIDA. (Tue SrickieBacks.) 
Body elongate, with slender tail, naked or shielded with bony 
plates; head large, compressed, the snout not tubular; mouth 
moderate, the chin prominent; teeth sharp, in jaws only; sub- 
orbital large. B. 3; opercles unarmed. JD. with 2 to 15 free 
spines; A. with one spine; V. subabdominal, I, 1. P. short, well 
behind gill openings, preceded by an area covered with smooth 
skin. Genera 5, species about 20, in fresh and brackish waters of 
Northern regions; small fishes, lively, greedy and quarrelsome, 
and exceedingly destructive to the spawn of large fishes. Most 
of them build nests, which they defend with much spirit. 
u. Innominate bones joined, forming a median plate on belly, behind V. 
6. Gill membranes joined, their border free from isthmus; spines small. 
c. Dorsal spines 7 to 11, divergent; pubic bones long, weak, widely di- 
vergent; body slender, Mostly naked. . . . PyGosreus, 108. 
ce. Dorsal spines 5, in right line; pubic bones short, widely divergent; 
body stout, naked. . . . . + « « « Evucarta, 109. 
66. Gill membranes not free from isthmus; dorsal spines 3 or 4, strong, 
divergent; pubic bones broad, little divergent; form robust; skin 
usually mailed. . . . . 8, Ie GAsTEROsTEUs, 110. 
aa. Innominate bones not joined, zich, extending as a strong process under 
skin, outside of V., the area between them flat and not bony; pubic bones 
weak; dorsal spines 4, divergent; gill membranes joined to isthmus; 
tail very slender; skinsmooth. . . . . . « + »« APELTES, 111. 
108. PYGOSTEUS Brevoort. (svyj, rump; doréor, bone.) 
238. P. pungitius (L). Nine-spinrp STICKLEBACK. Olivace- 
ous, punctulate and irregularly barred with black. Tail keeled; eye 
large. Head 4; depth 5 to 6. D.IX-I,9. A.1,8. L. 2}. New 
York to L. Mich., N. to Greenland, in fresh waters and entering 
sea. (E£u.) (Lat., pungent.) 
109. EUCALIA Jordan. (ed, good; xadrd, nest.) 
239. EB. inconstans (Kirtland). Brook StickieBack. ¢ in 
spring jet black, reddish-tinged; 9 olivaceous, mottled and dotted, 
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