. Annual report of the Board of Regents of the Smithsonian Institution . 265 Halieutine, nextto the Ilalieutcea stel-lata longest known, isthe Halieutichthys acu-leatus, first imperfectlydescribed as a Lophiusin 1818 by Mitchill, butnot adequately madeknown till 1863. It isalso one of the mostcommon and least ba-thyphilous species of itsgroup. It has been ormay be found in almostany place with a fittingbottom in the Gulf ofMexico or CaribbeanSea or along the coastof Florida at any depthfrom 9 to 95 color is more variedthan in most of the Ha-lieutines. According toGoode
. Annual report of the Board of Regents of the Smithsonian Institution . 265 Halieutine, nextto the Ilalieutcea stel-lata longest known, isthe Halieutichthys acu-leatus, first imperfectlydescribed as a Lophiusin 1818 by Mitchill, butnot adequately madeknown till 1863. It isalso one of the mostcommon and least ba-thyphilous species of itsgroup. It has been ormay be found in almostany place with a fittingbottom in the Gulf ofMexico or CaribbeanSea or along the coastof Florida at any depthfrom 9 to 95 color is more variedthan in most of the Ha-lieutines. According toGoode and Bean, the body is covered above with reticulationsof brown, the general hue varying from light yellowish gray tograyish brown, the markings being darker upon darker specimens;pectoral and caudal fins with about three dark bars; the terminalbars in young very black; body beneath, milky white. The palatinesas well as the vomer are provided with teeth; the gills are reduced tothe perfect ones of the second and third branchial arches. The diskis subcircular or Pig. 37.—Halieutichthys aculeatus. Views from aboveand below. After Goode and Bean. ANGLER FISHES GILL. 595 Almost all of the Halieutines are much depressed, but an exceptionis manifest in the Halieutella lappa, as will be evident from the twofigures here reproduced. The body is unusually convex above as wellas below^, and the two surfaces are limited by the zone of spiny tuber-cles which beset the sides of the disk as in other species of the subglobular shape, as well as spinescense, have suggested thename lappa (burdock) which has been given to it. The only specimenyet found was a small one (1^ inches long) dredged from a depth of125 fathoms off the New England coast (lat. 39° 58 30 N., ° 37 W.). Two otherspecies, however, havebeen described. Exceptfor form the species agreewith Halieutichthys that genus, have vo-merine and palatine teethas well as a half-gill onthe fourth arch (2,
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