32 



Julis semicinctus, (Ayres). — Bodj elongated, compressed; great- 

 est depth contained in the entire length not quite four times. Length 

 of the head equal to the greatest depth. Eye nearly circular ; its 

 diameter contained in the length of the side of the head about five 

 and a half times. The branchial rays are six on each side, and are 

 not covered by the sub and interoperculum. 



The first ray of the ventrals is spinous though feeble. 



In color the fish is of a dark greenish olive above, becoming lighter 

 on the sides and beneath. The dorsal and anal fins are dusky. The 

 caudal fin has numerous, narrow, vertical, waving bands of dark and 

 light olive green. A broad, bright black band arising on the side, at 

 about the middle of the body in height, passes down to join on the 

 abdomen the corresponding band from the opposite side. This semi- 

 belt is overlaid .by the pectoral fin, whose tip extends a little beyond 

 its posterior border. 



D. IX, 11, P. 13, A. II, 12, C. 5, 1, 6, 6, 1, 5, V. I, 5. 



This species is aUied, not remotely, to J. modestiis, G., and in the 

 above characters are given only the points in which it differs from that 

 type. It inhabits the coast of Lower California, a single specimen 

 (nine inches in length) having been obtained at Cerros Island by Dr. 

 John A. Veatch, to whose kindness I am indebted for its possession. 



October 24, 1859. 



President in the Chair. 



Dr. Kellogg read a description of a new and very remarkable 

 species of (Enothera, brought from Cerros Island by Dr. John A. 

 Veatch. 



(E. arborea, (Kellogg,) Tree Primrose. — Stem woody, erect, six 

 to eight feet in height, seldom more than two or three inches in diam- 

 eter ; branches short, erect or ascending, twigs scarlet or madder pur- 

 ple, bark of the body whitish or leaden hued, wrinkled, wood yellow- 

 ish, very brittle. 



Floral portion of the branchlets minutely short villous, with glandu- 

 lar hairs, often puberulent below. 



Leaves linear-lanceolate, entire, undulate, sessile, villous, alternate, 

 solitary or in fascicles, small, apex glandular, tipped with scarlet. 



Flowers in dense spikes, elongating as the fruit matures, floral 

 branchlets purple, tube of the calyx long tubular-infundibuliform, the 

 lower third attenuated, or somewhat suddenly contracted into a slen- 

 der tube, ventricosc above, about one inch in length, the acute reflexed 

 segments about one-fourth the length of the tube, minutely hoary-vil- 



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