FISHERY BULLETIN: VOL. 72. NO. I 



Table 2. — Dorsal and anal ray counis for 101 specimens ot 

 liolhiis ilioinpsdiii. 



Number of dorsal rays Total nuin- 



Number of  ber of 



anal rays 84 85 86 87 88 89 90 91 92 93 94 95 specimens 



70 __]_ 1 2 



69 ____-l-l---- 2 



68 -__-1314l— — — 10 



67 --2577531- — - 30 



66 -37398 — — — — — — 30 



65 2-873------- 20 



64 21211------- 7 



Total 

 number of 

 specimens 4 4 19 16 21 19 7 8 2 - - 1 101 



raker occurs at the angle of the arch and is 

 included in the counts forthe lower limb, although 

 stained material reveals this raker to be more 

 closed associated with the epibranchial. The 

 last one or two well-developed rakers are 

 associated with the hypobranchial. 



The number of gill rakers in the size range 

 examined is apparently independent of size. 

 A regression coefficient calculated for 28 

 females was not significant (P> 0.4). 



Vertebral counts were obtained from 96 

 specimens. There are usually 10 abdominal 

 vertebra (94 specimens), but two individuals had 

 11 (28 caudal vertebrae in both cases). Counts 

 of caudal vertebrae (including urostyle) were 27 

 (7), 28 (69), and 29 (18). while total vertebral 

 counts were 37 (7), 38 (69), and 39 (20). 



Figure 3. — A typical first gill arch from the ocular side 

 of Bcihus iliiimpsoni. 



Measurements 



The measurements obtained from 29 male and 

 31 female specimens for 13 characters are 

 summarized in Table 1. Linear regressions were 

 calculated in original units of measurement 

 (mm) with standard length as the independent 



Table 3. — Bailius iliomp.soni: Counts for eight characters. 



Characters 



Frequency of occurrence 



10 II 12 13 14 15 16 



19 20 21 22 23 24 N 



Caudal rays 

 Pectoral rays 



{ocular side) 

 Pectoral rays 



(blind side) 

 Gill rakers 



(upper limb) 

 Gill rakers 



(lower limb) 

 Gill rakers (total) 



157 



5 29 29 21 



1 7 32 22 



2 29 31 1 



3 21 22 27 13 

 1 



13 24 



17 



- 163 16.0) 



63 12.24 



63 11.49 



91 5.92 



91 14.38 



5 91 20.30 



70- 72- 74- 



71 73 75 76 



90- 92- 

 78 80 82 84 86 88 91 93 



Pored lateral line 

 scales 



31 80.9 



114- 116- 118- 120- 122- 146- 



115 117 119 121 123 124 126 128 130 132 134 136 138 140 142 144 147 



Lateral line scale 

 rows 



17 



63 131.6 



240 



