FISHERY BULLETIN: VOL. 84, NO. 3 



Table 2.— Continued. 



Neural and haemal arches and 

 spines, parapophyses and 

 hypural parts initially develop 

 in the following places on the 

 notochord by the following se- 

 quence. Addition is in a given 

 direction. 



Developing pterygiophores 

 and fin spines and rays are 

 added in a direction. 



Scombridae, 

 Scombrini 

 (Scomber) 



Scombridae, 

 Scomberomorini 

 (Scomberomorus) 



Scombridae, 

 Scomberomorini 

 (Acanthocybium) 



1 



Posteroventrad, posteriorly 

 and anteriorly. 

 Ventrad at center, posteri- 

 orly and anteriorly. 

 Dorsad at center, posterior- 

 ly and anteriorly. 

 Anterodorsad, posteriorly. 



Anterodorsad, posteriorly. 

 Posteroventrad, posteriorly 

 and anteriorly. 

 Ventrad at center, posteri- 

 orly and anteriorly. 

 Dorsad at center, posterior- 

 ly and anteriorly. 



Not entirely known. Smallest 

 specimen available had al- 

 ready two centers of initial 

 development: anterodorsad 

 and posteroventrad. 



First dorsal: pterygiophores 

 anteriorly and posteriorly. 

 Spines: one anteriorly, rest 

 posteriorly. Second dorsal: an- 

 teriorly and posteriorly. Anal: 

 anteriorly and posteriorly. 



First dorsal: posteriorly. Sec- 

 ond dorsal: anteriorly and pos- 

 teriorly. Anal: anteriorly and 

 posteriorly. 



First dorsal: probably posteri- 

 orly. Second dorsal: anteriorly 

 and posteriorly. Anal: anterior- 

 ly and posteriorly. 



Scombridae, 

 Sardini 

 (Sarda) 



Scombridae, 

 Thunnini 

 (Thunnus) 



Istiophoridae 

 (Istiophorus) 



Xiphiidae 

 (Xiphias) 



1. Anterodorsad, posteriorly. 



2. Posteroventrad, posteriorly 

 and anteriorly. 



3. Ventrad at center, posteri- 

 orly and anteriorly. 



1. Anterodorsad, posteriorly. 



2. Posteroventrad, posteriorly 

 and anteriorly. 



3. Ventrad at center, posteri- 

 orly and anteriorly. 



4. Dorsad at center, posterior- 

 ly and anteriorly. 



1. Anterodorsad, posteriorly. 



2. Posteroventrad, posteriorly 

 and anteriorly. 



3. Ventrad at center, haemal 

 spines posteriorly, para- 

 pophyses anteriorly. 



1 . Anterodorsad, posteriorly. 



2. Posteroventrad, posteriorly 

 and anteriorly. 



3. Ventrad at center, posteri- 

 orly and anteriorly. 



First dorsal: pterygiophores 

 posteriorly. Spines: first one 

 anteriorly, rest posteriorly. 

 Second dorsal: probably ante- 

 riorly and posteriorly. Anal: 

 anteriorly and posteriorly. 



First dorsal: pterygiophores 

 posteriorly. Spines: first one 

 anteriorly, rest posteriorly. 

 Second dorsal: anteriorly and 

 posteriorly. Anal: some ante- 

 riorly, most posteriorly. 



Entire dorsal: very few anteri- 

 orly, most posteriorly. Anal: 

 very few anteriorly, most pos- 

 teriorly. 



Entire dorsal: anteriorly and 

 posteriorly. Anal: very few an- 

 teriorly, most posteriorly. 



Percichthyidae 

 (Moroney 



Anterodorsad, posteriorly. 

 Ventrad at center, posteriorly 

 and anteriorly. Posteroven- 

 trad, posteriorly and anterior- 

 ly. Initial sequence not known, 

 not known if neural arches and 

 spines develop initially at 

 center. 



First dorsal: anteriorly and 

 posteriorly. Second dorsal: an- 

 teriorly and posteriorly. Anal: 

 anteriorly and posteriorly. 



'Data from Fritzsche and Johnson (1980) and G. D. Johnson (text footnote 3). 



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