58 CALIFORNIA ACADEMY OF SCIENCES. 



half of base of pectoral black; a black spot on opercle, 

 margined below and behind with silvery; tins dusky. 



We have named this species for Mrs. Lucretia M. Smith, 

 of San Diego, California. 



This is the only American species of Gobiiis proper hav- 

 ing 7 dorsal spines, 



22. Gobius SOporator Cuv. & Val. All tropical seas. 



The specimens examined are from Panama, Barbadoes, Para, Itapu- 

 ana, Ciiba, Galapagos, Sambara, Baliia, Orange Key, Bahamas, 

 Pernambuco, St Thomas, Tortugas, Florida Keys, Martinique, 

 Sao Matheas, Curnca, Rio de Janeiro, Rio Doce. 



The color variations among examples of this species are 

 very great, specimens from one locality varying from plain 

 sand color, or gray, to greenish black : some dark brown 

 specimens have light bars across the back; in others the 

 scales have light centers forming horizontal series of light' 

 lines; sometimes there are light spots on sides of head and 

 cheek; some specimens are conspicuously marbled with 

 light and dark brown; and white spots occur in the centres 

 of some of the scales on specimens of any ground color, 

 these white spots being brighter on some of the scales than 

 on the others, forming interrupted longitudinal lines. If 

 any value could be placed upon the coloration, almost every 

 specimen would be a distinct species. The color variation 

 is irrespective of locality, some localities having all the 

 above described variations. The types of Poey's mapo, 

 lacertus and hru.nneus prove to be color varieties of Gohius 

 sopor ator. 



We have compared these various forms of soporator with 

 Gobius alhopuncLitus collected by Dr. Klunzinger in the Eed 

 Sea; with others collected by Mr. Garrett in the Society 

 Islands, Sandwich Islands and Kingsmill Islands; with 

 specimens collected by C. L. Salmin at Cape York, Aus- 

 tralia, and with those collected bv B. G. Snow on Ebon 



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