298 REPORT OF COMMISSIONER OF FISH AND FISHERIES. [74] 
thography. Amoug American genera of fishes we may therefore use © 
the following, notwithstanding their earlier analogues : 


Microstomus for Cynicoglossus notwithstanding the prior Microstoma. 
Heterodontus Cestracion Heterodon. 
Lucania = Lucanus. 
Thymatllus —— Thymalus. 
Nebris — Nebria. 
Cestreus (kearpeve) Cynoscion Cestreus (KeoTpaioc). 
Aiphidion Xiphister Xiphidium. 
Amitra Monomitra Amitrus. 
Scytalina Scytaliscus Scyialinus. 
Lagochila Quassilabia Lagocheilus. 
Auchenopterus Cremnobates Auchenipterus. 
Ophisoma Congromurena Ophiosomus. 
~ Leucos Myloleucus Leucus. 
Pterophryne Pterophrynoides Pterophrynus. 
Scaphirhynchus Scaphirhynchops Scaphorhynchus. 
Brachirus Synaptura Brachyrus. 
If Microstomus be discarded, the name next in order of date is Cyn- 
icoglossus. 
The following is Bonaparte’s definition of Cynicoglossus as quoted by 
Gill (Proc. Ac. Nat. Sci. Phila., 1864, 222) : 
‘Secondo & Cynicoglossus nob. che come il Pl. cynoglossus L. ha la linea 
laterale retta, la bocca piccola, i denti come quello di sopra [ Platessa] ma 
la mascelle iguale, con labbra turgide, e ’ano senza spina.” 
Later, in his Catalogo Metodico dei Pesci Europei, Bonaparte changes 
this name from Cynicoglossus to Cynoglossa, giving the sole species as 
Cynoglossa microcephala, and quoting as its synonym ‘* Plewronectes cyno- 
glossus L. Nilss.” showing that his identification of the Linnzan species 
coincided with that of Nilsson, who at first used the name “ Plewrenectes 
cynoglossus” for the present species instead of the species of Glyptocepha- 
lus. In Bonaparte’s Catalogo, Glyptocephalus Gottsche is regarded by 
Bonaparte as synonymous with Platessa. 
It is thus evident, as Dr. Gill has suggested, that Bonaparte meant 
to refer to the Plewronectes microcephalus instead of Pl. cynoglossus, he 
“having followed Nilsson in his erroneous identification” of the latter 
with the former. In farther evidence of this we have the fact that Cyni- 
coglossus microcephalus (kitt) has no anal spine, while such a spine is 
present in the species of Glyptocephalus. We would be, therefore, jus. 
tified in the use of Cynicoglossus instead of the later Brachyprosopon, 
if Microstomus should be regarded as ineligible on account of the prior 
name Microstoma. 
ANALYSIS OF SPECIES OF MICROSTOMUS. 
a. Dorsal rays 85 to 93; analrays 70 to76. Head very small, 43 to 5} in length; depth 
about 2}; eyes moderate, about 4 in head; pectorals 1? in head; lat. 1., 130; 
vertebra 13 +- 35 = 48. Color dull yellowish-brown, body and fins clouded with 
blackish, ... 2... .ssdiehithns Meeweeth we heel nedn isle ee eWe eee cae ae Kirt, 88. 
aa. Dorsal rays 102; anal rays 85. Head larger, 4} in length; depth nearly 3 in 
' Jength; eyes large, 3 in. head, opercle above angle, adnate to the shoulder girdle ; 
pectoral short, 1} in head; lat. 1. 140; vertebra 12+-40=52. Olive-brown, blotched 
on body and fins with dar 1) os Se EE PIS oc EI oI. Paciricus, 89. 
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