ADDENDA 88. SPARID^ ARGYROPS 
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Page 557, The groups called Stenotomiis and Lagodon should be 
recognized as genera distinct from Diplodus, and the prior Argyropn* 
Sw. (Class’u Fish, etc., 1839, 221; tyjie Spams spinifer Forsk.) should 
])robably be used for the former. 
I’age 557. The species called in the text Spams clirysops and Spams 
aculeatus are identical. The species belongs to the genus Argyrops^ 
and should stand as: 
880. A. cBirysops (L.) J. & G. — Sonihcrn Forgee. 
Bitfering from the common northern scui), A. versicolor] (Mitch.) J. & 
(i. { = S. argyrops Auct. not of Linn.), in the following respects: 
Body more elongate and less elevated anteriorly; molar teeth 
coarser; size larger. Head 3|-; depth 2i. D. XII, 12; A. Ill, 11; 
scales 7-48-14. L. 18 inches. Cape Cod to Florida. The specimen 
described in the text (25170 TJ. S. Xat. Mus.) is unusually deep-bodied 
for this species. 
Page 557. AHqt Argyrops versicolor Add: 
881 (6). A. ca.8>riEaBas (Bean) J. & G. — Goafs Head Forgee. 
Light olive; silvery below ; the young with faint very narrow darker 
bars. Body subovate, the back anteriorly much more elevated than in 
*Tho cranial characters of Argyrops are very different from those of Biplodns, as 
is shown hy the following aecount of the skulls of the two genera, kindly furnished 
to us by Professor Gill : 
In Diplodtis “the skull is extended downwards to the chevron of the vomer, and is 
notched on each side behind the forehead; the parasphenoid has a varying inferior 
crest, which is entire near its posterior decnrrent processes; forehead l)road, well de- 
tined, convex transversely above the orbits, abruptly terminated behind by the con- 
vergence of the external lateral crests into the occipital, the occipital crest ending 
abruptly behind the forehead, and thickened with vertical osseous strife; the inner 
as well as outer lateral crests erect and laminar, and converging more or less forwards. 
“In Diplodus proper the forehead is moderately broad and the bones contracted 
forwards, the parasphenoid with a superficial inferior crest, convex forwards, and 
little developed posterior decnrrent processes. 
“In Archosargus Gill, the forehead is very broad and the bones wide and almost 
even with the prefrontals in front ; the parasphenoid with a deep inferior crest, and 
emarginated finteriorly and with enlarged posterior decnrrent processes. 
“In the genus Slevolomus (Argyrops) the skull is extended forwards to the head of 
the vomer and notched on each side behind the forehead; the parasphenoid has the 
inferior crest low, and little developed posteriorly-decurreut processes; the forehead is- 
narrow and ill-flefined behind, its surface of compact texture, but with a few foramina 
and two longitudinal grooves on each side; the occipital crest moderate, extending but 
little forward of the supraoccipital bone, and not overhanging backward; the crest 
strengthened by a longitudinal lateral ridge on each side, terminating backwards in 
mamilliform projections, the inner and outer lateral crests not procurreut on the fore- 
head.” 
t Lahrus rersicolor Mitch., Trans. Lit. and Phil. Soc., 1815, 1, 404. Spams argyrops 
L. is the young of A. chrysops, with 2d and 3d dorsal spines filamentous. 
