1906.J NATURAL SCIENCES OF PHILADELPHIA. 95 



pale greenish. Dorsal whitish with very pale lines, other fins more or 

 less transparent. Iris shell-color with a brown horizontal cross-bar. 

 Length lOf inches. 



The Marquesas and Big Pine Key. This is the largest and strong- 

 est species met with. It was found associated with the others in the 

 sea-weed. It varies in color when seen in life. One example now 

 in alcohol is dark blackish-brown on upper half of side. A young 

 example taken later at Hailer's Rock has about sixteen dark annu- 

 lations. 



39. Hippocampus punctulatus Guichenot. Sea Horse. 



Color in life deep dull olivaceous, tubercles or joints pale at bases 

 and ruddy at tips. Body everyivhere more or less variegated with 

 narrow whitish vermiculating lines, and those about eye radiating 

 from pupil, which is blackish. Pectoral and dorsal pale grayish^ 

 latter finely spotted at base with small dusky or olive specks. 



Sea-weed of the i\Iarquesas. 



40. Hippocampus zosterae Jordan and Gilbert. Sea Horse. 



One living example was pale brownish-white, side speckled with 

 pale yellowish. A submarginal dorsal line of blackish. ]\Iarginal 

 portion of belly dusky-olive. Rings white. Pupil blackish. 



Another was a little more brownish. Dorsal margined with pale 

 orange, and a submarginal black band. Brown lines radiating from 

 eye and on side of head slightly variegated with pale olive. 



Another was a little more highly colored and more of a golden hue. 

 Rings at intervals more grayish-white. Coronet with a dusky fila- 

 ment. 



One had a whitish snout. General color more brownish. Brownish 

 lines, edged with white, radiate from eye. Tubercles on trunk and 

 caudal rings at intervals more whitish. 



An example was similar to pale brownish-white one, but with minute 

 specks. A pale brownish line from eye to end of snout. "Wliitish 

 caudal rings at intervals, and like most of preceding with a more or 

 less evident submarginal dusky line on dorsal, fins otherwise plain and 

 pale-colored. 



One with pronounced tubercles all more or less pure white, inter- 

 spaces on rings pale olive, those on ventral surface darker, and all 

 more or less variegated with whitish dots. Whitish lines radiate from 

 eye. Dorsal with a submarginal brownish band, fins other«'ise pale 

 whitish. Rings on caudal white and pronounced at intervals. Brown 

 band from eye to tip of snout crossed by several whitish fasciae. 



