Jordan and Evermann. Fishes of North America. 2175 



beneath; fins, except pectoral and ventral, pale; pectoral with 5 dark 

 bands, the third extending entirely across the fin. Known only from the 

 type taken off Barbados between 100 and 200 fathoms, (egretta, an egret, 

 in allusion to the elongate dorsal ray, resembling the plume of an egret.) 



rrionotus egretta, GOODE & BEAN, Oceanic Ichth., 465, fig. 381, 1896, off Barbados, at Blake 

 Station 64. (Type in Mus. Comp. Zool,) 



794. CHELIDONICHTHYS, Kaup. 

 (SMALL-SCALED GURNARDS.) 



Chelidonichthys, KAUP, Arcbiv f. Naturgeschichte 1873, 87 (hirundo). 



This genus differs from Prionotus chiefly in the absence of palatine teeth. 

 The scales are much smaller, and the pectoral fins less developed; a series 

 of bony, spinous plates extends along the base of the dorsal fin, a pair of 

 them to each ray. the fin thus running in a shallow groove; there are no 

 plates along the lateral line; caudal fin usually emarginate. Lateral line 

 usually forking at base of caudal, the branches running to tip of fin. 

 The numerous species abound on the coasts of Europe, Africa, and India; 

 ranging north to Japan. (xeXidojv, swallow; t-$v$, fish.) 



2503. CHELIDONICHTHYS PICTIPINNIS (Kaup). 



The following description* is taken from Dr. Kaup's original type, 

 kindly sent us from the museum in Hamburg by Dr. Georg Pfister, 

 Curator: 



Head 31 (to tip of rostral lobe); depth 5J. D. IX-16; A. 15; pec- 

 toral 10 -f- 3 detached rays; scales about 68. Width of head 1& in its 

 length: width of nape between occipital spines 3 in length of head; 

 upper profile of snout straight. Snout long, a little more than twice in 

 head; emarginate at tip, the preorbitals extending beyond it on either 

 side; each preorbital with about 5 blunt spines. Mouth very wide, its 

 greatest width (measured -inside) 2 in head; maxillary reaching front of 

 orbit, 2* in head. Vomerine teeth present in a small crescent-shaped 

 patch, villiform; no teeth on palatines; a wide band of well-developed 

 villiform teeth present on each jaw. Eye large, 4f in head. Interorbital 

 space deeply concave, If in eye. Depth of caudal peduncle 1 in eye. 

 Gill rakers 9, about 2-j- in eye. Bones of the head covered with radiating 

 strife which are comparatively fine, smooth and regular; preopercle with 

 2 spines at the angle, the upper much the larger; opercle ending in 

 2 spines; humeral spine long and strong; supraorbital rim anteriorly 

 with 2 spines; a bony groove extending the entire length of the dor- 

 sals, formed by 24 plates, each of which ends on the side in a spine ; a 

 short, somewhat obscure transverse groove behind each eye, the two not 

 continued across the occiput. Scales small, cycloid, present on back, 



* Dr. Pfister sends the following note under date of January 2, 1896: 

 " Das Kaup'sche Original-Stuck von Trigla piclipinnis war in unseren Katalogen nicht 

 enthalten; erst durrh langere Studien im Arcliiv ergab sich, dass das Stiick, welches ich 

 Ihnen nunmehr iibersaudt habe, thatsachlich das Original-Stuck von Kaup ist; es stand 

 im Museum als Trigla hirundo, Barbados, Ug. Ehrhardt." 



