FAMILY CANTHIGASTERIDAE — WOODS 123 



caudal peduncle 2.0 to 2.5; length of pectoral fin 1.8 to 2.2; height of 

 dorsal fin 1.9 to 2.3; height of anal fin 2.2 to 3.4; postorbital part of 

 head (upper edge of gill opening to margin of eye) 3.6 to 4.0; inter- 

 orbital width 2.9 to 4.6; all in length of head. Angle of snout profile 

 with axis of body 39 to 48 degrees, snout straight in small specimen 

 (36.5 mm.), concave in female of 65 mm., convex in 84 mm. male. 



Back slightly keeled; belly of some large male specimens with 

 raised median fleshy ridge, belly of females smootlily rounded; small 

 spines present on entire head except sides of caudal peduncle, 

 sometimes spines absent from dorsal and ventral surfaces of caudal 

 peduncle; hind margin of caudal fin nearly straight, only slightly 

 convex; first unbranched pectoral ray very short, less than one- 

 third height of second; anal fin origin posterior to insertion of last 

 dorsal ray. 



Color in alcohol. — Ground color of head and body light greyish- 

 brown to almost black; top of snout crossed by 3 to 4 black saddle 

 lines; eye with about 9 thin white-bordered radiating lines, those on 

 anterior and upper border crossing over to meet their fellows, those 

 on posterior border arcing dorsally but not meeting fellows; cheeks 

 with small close-set black dots which form parallel rows anteriorly 

 and pass downward toward throat; back and sides with small round 

 pale spots each with a minute black dot in its center; additional dark 

 spots present on lower sides, especially prominent between pectoral 

 and anal fins; belly lighter than body and with a median dark line 

 extending from vent forward and fading on breast or throat; pectoral 

 fin black along base and tip of first and sometimes second rays, rest 

 of fin white; dorsal and anal fins similarly colored; caudal fin dusky 

 grey to black, the small black-centered pale dots extending onto the 

 base of fin and sometimes almost to tip. 



Young (22 mm.) pale grey on head and body; tip of snout dusky, 

 no parallel downward curving lines on anterior part of checks; no 

 radiating lines from anterior, dorsal, or ventral parts of eye, radiating 

 lines from posterior part of eye cm-ving dorsally as in adult; lower 

 anterior sides of body with network of intense black lines; back and 

 upper sides with indistinct pale round spots lacking dark centers; 

 dark spot present at base of dorsal fin; pectoral, dorsal, and anal fins 

 colorless; caudal fin dusky with narrow pale distal margin. 



CANTHIGASTER SOLANDRI (Richardson) 



Plate 144, B 



Tetrodon solandri Richardson, Zoology of the voyage of H.M.S. Sulphur, Fishes, 



p. 125, pi. 57, figs. 4-6, 1845 (type locality, Polynesia). 

 Canthigaster saipanensis Fowler, Proc. Acad. Nat. Sci. Philadelphia, vol. 79 



p. 73, fig. 18, 1945 (types ANSP 71607 and 71608 examined by Schultz; 



type locality, Saipan) . 



