Jordan and Rvermann. Fishes of North America. 771 



Symjmtllius peckinnu*, STORKR, Keport Fish. Mass., 1G3, pi. i, fig. 2, 1839, Holmes Hole, 



Marthas Vineyard. 



Syngn<tlli>i*j<txri<ifns, DE KAY, New York Fauna: Fishes, 319, pi. 54, fig. 174, 1842, New York. 

 Syngnalhii* ,>/<&*>*, DE KAY, 1. c., 321, pi. 54, fig. 17G, 1842, New York. 

 Syngtinthus dekai/i, DUMKRIL, Hist. Nat. Poiss., n, 569, 1870, New York. 

 Syngnathii* inillx'rtiaiius, DUMERIL, I. c., 573, New York. 

 Siphostoma fuscum, SWAIN, Proc. U. S. Nat. Mus., 1882, 314; JORDAN & GILBERT, Synopsis, 382, 



1883. 



1181. SIPHOSTOMA STARKSI, Jordan & Culver. 



Head 10$; depth 21. D. 38, on 0+10 or 11 rings. Rings 14 + 37 or 

 38 = 51 or 52. Tail twice length of head and trunk. Snout 2 in head. 

 Dorsal half longer than head. Body rather stout ; head scarcely carinate 

 above; snout very short with a slight smooth keel; no keel on opercle; 

 belly slightly keeled ; 2 lateral keels on body confluent into 1 behind. 

 Color dark olive, much mottled with darker, but without distinct mark- 

 ings ; belly yellowish. Length 4 to 6 inches. Close to S. arctum, but 

 differing in the much larger dorsal and the greater number of rings cov- 

 ered by it. Rio Presidio, Sinaloa, abundant among Algce in clear fresh 

 water, near the town of Presidio, 9 miles above tide water. Apparently 

 breeding in fresh water, as the sac of the male is full of eggs. (Named for 

 Edwin Chapin Starks, preparator in Leland Stanford Junior University.) 



Siphostoma starksi, JORDAN & CULVER, Fishes of Sinaloa, MS., 1895, Rio Presidio, Mazatlan. 

 (Type, No. 47425. Coll. Hopkins Expedition.) 



1132. SIPHOSTOMA ABCTUH, Jenkins & Evermann. 



Head 9 to 11 in body to base of caudal ; depth 20 ; dorsal 20, on about + 5 

 rings ; rings 15 + 39. Top of head scarcely carinated, the opercle without 

 a prominent ridge. Snout 2 in head, keeled in the median line. Dorsal 

 slightly higher than the width of a body ring, its length about equaling 

 the head ; pectoral 3 in head ; distance from tip of snout to vent i to | length 

 of tail; caudal about 3 in head. Color pale, with no evident markings 

 except on the under side of the tube of the snout, and as far back as the 

 posterior margin of the eye, where there are dark rnottlings. Mazatlan 

 specimens show narrow white cross bands about 4 rings apart. Gulf of 

 California, south to Mazatlan, one specimen taken at Guaymas, and two 

 others recently taken at Mazatlan by the Hopkins Expedition ; a small 

 and slender species, (arctus, contracted.) 



Siphostoma arctum, JENKINS & EVERMANN, Proc. U. S. Nat. Mus., 1888, 137, Bay of Guaymas. 

 (Type, No. 39639. Coll. Jenkins & Evermann.) 



1133. SIPHOSTOMA CRIMGERUM, Bean & Dresel. 



Rings 15 + 38 or 39. Dorsal rays 16 or 17, on + 4 rings. Snout very 

 short, less than length of head, rounded above; slightly keeled; angles 

 of body little marked ; head nearly 11 times in total length to caudal base ; 

 eye 5 in head; depth of body half length of head. Caudal pouch 4 times 

 in length of body, 17 caudal rings ; pectoral and caudal very small. Color 

 chestnut brown, with about 12 broad dark-brown cross bands on back, 

 middle of each cross band with many pale-blue streaks, the most distinct 



