2b Annals of the Carnegie Museum. 



in all examples, about 2h in length of head reaching to below the front of 

 eye, about 2 in head in the larger and extending below posterior part of 

 eye. Lower jaw oblique, about as long as upper, slightly projecting in 

 the larger example. No trace of teeth. Eye small, a little longer than 

 snout, about 3^ in head; preopercle widened below; opercle deep, about 

 as long as eye; sharply striated in the larger examples, smooth in the 

 smaller. In the larger specimens the opercle is longer than the eye. 



Dorsal fin low, median, its rays uncertain, about twelve; caudal deeply 

 and evenly forked, the lobes a little longer than head; anal short, its rays 

 lost in the type example, but perfectly preserved in No. 51, the fin low, 

 even, with twelve rays, usually one to each interspinal bone, but sometimes 

 two; pectorals short, placed low, the bases of about eight rays showing; 

 ventrals lost in most specimens, in others very small and inserted behind 

 front of dorsal, under the thirteenth rib. Only the base is preserved, but 

 the fin must ha\'e been very short. In most of the specimens, the inter- 

 spinal bones behind the anal end in little knobs, to which the rays are 

 jointed. 



Vertebrse about 15 + 17 = 32. or 16 + 17 = 33. Ribs about 20, 24 in 

 larger examples; scales thin, large, nearly all gone, traces of a few on 

 lower part of belly. Some of these seem quadrate in form and plate-like, 

 but of thin texture. 



Of this species the type is a small specimen. Collector's No. I, very 

 perfectly preserved, except for the fin-rays (Plate VIII, fig. 3). It is 2 

 inches long, with the caudal, and it is represented by an equally perfect 

 duplicate. Collector's No. 2. 



Almost equally perfect is another specimen, 3^^ inches long, Collector's 

 No. 29, also figured (Plate V'lII, fig. 4). This has an equally perfect du- 

 plicate. Number 27. Other relatively perfect examples are Numbers 65 

 and 66 (duplicates), both showing the anterior half of body. Another, 28, 

 shows the relatively large mouth and rather broad, striated opercle, 

 Other examples broken but in parts perfect, are the following: 30. 31, 32, 



33. 34. 38, 40, 41. 42, 45. 46, 47. 48, 49. 5o, 51. 52, 54, 55. 56, 57. 58, 59. 

 60, 61, 62, 63, 65, 66, 92, 98, 125, 130. 



In 46, the ventral scutes are especially well preserved. In none is there 

 any trace of the dorsal scutes. In No. 51, the upper half of the body is 

 lost, the belly with the anal fin very well preserved. This anal fin is 

 restored in fig. 4. Number 125, and its duplicate Number 130, are very 

 small, about an inch long, but very perfectly preserved. We present a 

 figure of Number 125 (Plate IX, fig. 6). Other fragments very badly 

 broken are Numbers 144, 175, 177, 194, 201, 204, 222, 221, 238, 257. 



