Table 1. — Comparison of £1 Altanlic AlbuUi iieiiKiptera ami 

 10 A. vulpes of similar mean length on the basis of differential 

 proportional characters (in thousandths of the standard 

 length ) 



[Ontogenetic variation of cliaracters is indicated Iiy syniliols in part'ntliescs: 

 (I) isometric, CA+) positively allometric, (A — ) negatively allonietrici 



Character 



Standard length inini.) 



Prepectoral lengtli (A — ) 



I'reanal length (A+)-- - 



Head length ID 



Maxillary length (I) 



Mandible length (I) 



I'reiira: lenglli (11-. 



Orliit diameter ll) 



Caudal pedniiele depth (I) 



Dorsal base length (I) 



Dorsal nil heiglil (A-) 



Last dorsal r;iv length (A+) 



Last aiml ray ieliglh (A+) 



Upper eaiidal lobe length (A — ) 

 Lower caudal lobe length (A — ) 



. 1. nemoptera 



Range 



234-341 



270-301 



824-847 



289-312 



133-142 



118-128 



43- 49 



46- 53 



60- 68 



173-190 



161-177 



152-193 



80- 99 



204-234 



187-208 



Mean 

 289 

 286 

 836 

 299 

 138 

 123 

 46 



m 



63 

 183 

 169 

 170 



89 

 223 

 200 



, 1. vntites 



Rantje 



204-387 



255-280 



835-856 



267-296 



91-103 



83- 97 



26- 35 



52- 60 



70- 78 



138-17(i 



182-197 



54- 66 



54- 65 



232-275 



216-254 



Mean 



293 



268 



844 



286 



94 



93 



29 



65 



74 



164 



IKK 



60 



5K 



256 



239 



Table 4. — Fre<jiienci/ distribution of pectoral raijs in Alliiiln 

 nemoptera and A. vulpes 



"able .'). — Frequency distril)ution of lolrnd line .scales in 

 Albula nemoptera an.d .\. vulpes 



Table 2. -Coniparisoii of H .lllantic and 7 Facijic sprciincns of 

 .\lbula uemiiptera of similar mean length on the liasis of 

 proportional characters (thousandths of the stanilard length) 



[Ontogenetic variation of characters is indicated by symbols in parentheses: 

 (I) isometric, (.\-t-) positively allometric, (A—) negativeiy allonietrici 



Standard length fiiiin.) 



I'redorsal length (A+) 



I'repmtoral length (A-) 



Prepelvic length (A-t-) 



Preanal length <A+) 



Head length (I) 



Snciut length (I) 



.NhiMllarv length (I) 



.MandibU' length (I) 



Prcoral length (I).. 



Orbit diameter (A—) 



Interorbital width (I) 



Body deiith (A + ) 



Cauda! peduncle depth (I) 



Dorsal base length (I) 



Anal base length (I) 



Dorsal fin height (.\ — ) 



Anal fill height (1) 



Pectoral fin lengt h ( 1 1 



Pelvic fin length (li 



Last dorsal ray length (.\ + ) 



Last anal ray length (A + ) 



Upper caudal lobe length (A — ) 

 Lower caudal lobe length (A—) 



Atlantic 



Range 



72-341 



464-490 



278-301 



.558-602 



806-847 



297-304 



110-120 



133-140 



119-128 



43- 49 



47- 68 



61- 69 



178-199 



HO- 70 



179-194 



51- 63 



163-192 



87- 94 



142-1,52 



114-136 



39-178 



49- 96 



204-234 



187-208 



Mean 

 246 

 479 

 288 

 589 

 829 

 300 

 115 

 138 

 123 



45 



53 



65 

 190 



65 

 186 



58 

 173 



90 

 147 

 121 

 150 



86 

 222 

 200 



Pacific 



Range 

 78-346 

 473-513 

 267-294 

 .57(HilO 

 814-838 

 28O-302 

 107-116 

 124-139 

 111-129 

 39- 49 

 46- 67 



61- 68 

 165-208 



62- 68 

 181-204 



56- 66 

 171-194 



88-105 

 141-161 

 120-130 



4.5-176 



64-107 

 217-237 

 212-230 



Mea n 

 205 

 489 

 283 

 .586 

 830 

 290 

 111 

 130 

 118 



42 



52 



65 

 184 



66 

 189 



59 

 184 



98 

 151 

 125 

 130 



87 

 237 

 222 



Table 6. — Frequencij distritiution of scales above and below 

 lateral line, and around caudal peduncle in Albula iiemiiptera 

 and A. vulpes 



T.\BLE 7. — Frequency distritiution of prcdorsal scales in .Mbula 

 nemoptera and .4. vulpes 



Table 3.— Frequency distribution of dorsal and pelvic rays in 

 Albula nemoptera and A. vulpes 



Table S. — Frequency distribution of lower awl upper liinh gill 

 rakers in Albula nemoptera and .\. vulpes 



Species 



.1. nemoptera (.Atlantic). 

 .1. nemoptera (Pacific)... 

 .\. vulpes (Atlantic) 



Lower limb 



28 

 21 

 39 



Mea n 

 9.9 

 11.2 

 11.9 



Upper limb 



Mean 

 7.0 

 9.0 

 8.2 



253 



