CATFISH GENUS NOTURUS RAFINESQUE 91 



Lower-half caudal rays: (a) 24 (27-33) 29.50; (b) 22 (28-33) 30.45; 

 (c) 32 (26-32) 29.78; (d) 6 (30-31) 30.67; (e) 49 (28-33) 29.67; (f) 3 

 (28-30) 29.00; (g) 9 (26-31) 28.56; (h) 145 (26-33) 29.74. 



Upper-half cavdal rays: (a) 24 (29-33) 31.08; (b) 22 (29-34) 31.95; 

 (c) 32 (29-33) 30.91; (d) 6 (33-34) 33.67; (e) 50 (29-35) 31.62; (f) 3 

 (29-30) 29.33; (g) 10 (27-32) 29.90; (h) 147 (27-35) 31.35. 



Total caudal rays: (a) 24 (57-65) 60.58; (b) 22 (57-67) 62.41; (c) 32 

 (56-65) 60.69; (d) 6 (64-65) 64.33; (e) 49 (58-66) 61.31; (f) 3 (57-60) 

 58.33; (g) 9 (54-62) 58.33; (h) 145 (54-67) 61.10. 



Vertebrae: In the counts obtained, the mode for each river system 

 is 39, except the Merrimack. The data are summarized for the fol- 

 lowing river systems: Savannah 4 (38-39) 38.75; Wateree 24 (38-40) 

 38.88; Neuse 69 (37-42) 38.83; Tar 17 (38-41) 39.29; Roanoke 26 

 (37-40) 39.19; Holston 16 (38-40) 39.25; New 3 (38-39) 38.67; James 

 52 (37-40) 38.98; Monongahela 8 (38-39) 38.88; Potomac 34 (38-41) 

 38.97; Susquehanna 36 (37-40) 38.53; Merrimack 1 (38) 38.00; total 

 290 (37-42) 38.92. 



Type. — ^A single specimen, MNHN 3053, is the basis of the des- 

 cription of Pimelodon livree, hence the holotype of Pimelodus insigne, 

 of Pimelodus lemniscatus, and of Pimelodon insignarius. Doctor Leon 

 Bertin and Dr. Victor G. Springer (personal communications) have 

 kindly provided certain critical information about this specimen as 

 follows: The standard length is 74.8 mm. and the total length 88.4 

 mm.; the caudal fin has approximately 25-|-13-f-9-|-16=63 rays; 

 there are 7 soft dorsal rays and 20 anal rays; on each side there are 

 2 internasal pores, 9 pelvic rays, and 9 soft pectoral rays. "Philadelphie 

 (Etats-Unis)," is indicated as the type-locality by Bertin and Est^ve 

 (1950, p. 25), but Bertin states in his letter that there could have been 

 a transposition of specimens: "Prov^enance. Une erreur a pu se produire 

 a I'origine entre deux specimens: un Pimelodus lemniscatus (I'holotype) 

 et un Pimelodus nebulosus dont les provenances sont Savannah et 

 Philadelphie. II est possible que Savannah s'applique au P. lemniscatus 

 et Philadelphie au P. nebulosus." However, the black fin margins 

 shown in Vaillant's figure (1896b) of Pimelodon insignarius are not 

 characteristic of southern specimens. A subsequent check on this 

 confusion suggests that data from MNHN 3052 which is listed as 

 Pimelodus nebulosus from Savannah was inadvertently copied on a 

 label for MNHN 3053, and that Philadelphia is probably the correct 

 locality. 



Range. — Noturus insignis (map 5) has as an apparent native range 

 part of the Lake Ontario drainage, most of the Atlantic coastal 

 streams from New York to Georgia, where it is most frequently 

 found at or above the Fall Line, and the upper New or Kanawha 

 River system. It occurs in the Merrimack River of New Hampshire 



298-943 O — 69 7 



