. Synopsis of the fishes of North America [microform]. Fishes; Poissons. PUYSOCLISTI. 3^7 J93. !V. avocetta Jordan & Gilbert. - > Heatl slenderer, its depth one-ninth its greatest length. Eye large, one-third the head, without snout. Length of pectoral scarcely greater than height of anal, which is scarcely less than the greatest depth of the body, and more than the greatest depth of the bead. Translucent; l,cllj' with close-set dark spots, its lower edge and anal fin black, the back abruptly white and unspotted. L. 22 inches. Head 10; depth 3b; depth of anal 64 in length of body. Tuget
. Synopsis of the fishes of North America [microform]. Fishes; Poissons. PUYSOCLISTI. 3^7 J93. !V. avocetta Jordan & Gilbert. - > Heatl slenderer, its depth one-ninth its greatest length. Eye large, one-third the head, without snout. Length of pectoral scarcely greater than height of anal, which is scarcely less than the greatest depth of the body, and more than the greatest depth of the bead. Translucent; l,cllj' with close-set dark spots, its lower edge and anal fin black, the back abruptly white and unspotted. L. 22 inches. Head 10; depth 3b; depth of anal 64 in length of body. Tuget's Sound; one example known, differing in some slight respects from all Atlantic specimens examined. (Jordan & Gilbert, Proc. U. S. Nat. Mii8. 1880,409.) ; SUBCLASS PHYSOCLISTI. ' {The Physoclistous Fishes.) Air-bladder, if present, without pneumatic duct, in the adult. Parietal bones separated by the supraoccipital. Ventral fins usually thoracic or jugular, normally with 1 sj)ine and 5 soft rays. Pectoral fin normally inserted high, with vertical base. Vertical fins usually with spines, rremaxillaries normally forming the entire border of the upper jaw. Tail houiocercal. {<puao^, bladder', xhiffrdg, closed.) OF THE ORUEB OF PUYSOCLISTI. a. Scapula suspended to tbe .anterior vertebnc ; maxillary distinct; superior brau- cliibyals an<l pbaryngeakpresent; inferior pluirynf^eals not united; no interclavieles; body elongate; ventral fins abdouiiual or wanting. Opistiiomi, p. aa. Scapula suspended to the cranium by a post-temporal. 6. Lower pharyngeals co-ossilied; fins without spines; veniral fins abdominal; third and fourth superior pharyngeals much enlarged. Syxkntognatiii, Q. W. Lower i)haryngoal8 separate (or if united, fins with spines and veutrals thoracic). c. Gills tufted; superior branchihyals and pharyngeals and basal branehihyals wanting; ventrals, if present, abdominal LoPHonRANCiiii, R. <x. Gills pectinate. d. Superior branchihyals and jjlmryngea
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectfishes, bookyear1882
