FISHERY BULLETIN. VOL. 76, NO. 1 



Figure 2. — A. Rouleina attrita, redrawn from Koefoed (1927, plate 3, fig. 5). B. Rouleina maderensis, redrawn from Maul (1948, fig. 1), 



with photophore distribution based upon USNM 215478, 131 mm SL. 



in MNHN). Fortunately, Vaillant clearly indi- 

 cated that the description of each species is based 

 on a unique individual chosen from the collection 

 (Bauchot et al. 1971). On the bottom of page 159, 

 following a list of measurements of a 250-mm 

 specimen, Vaillant ( 1888) made the notation "No. 



85-166, Coll. Mus.," a clear designation of a holo- 

 type. This specimen is now in very poor condition 

 but a piece of skin clearly shows the typical ring- 

 like lateral line scales (Figure 3) and indications of 

 fluid-filled dermal compartments typical of^ Rou- 

 leina. The latter could be mistaken for scale poc- 



PORE 



Figure 3. — Rouleina attrita, schematic 

 of lateral line scale and subsequent pore 

 from the midbody region. 



SCALE 



LATERAL LINE CANAL 



82 



