64 PROCEEDINGS OP THE ACADEMY OP 



OCINEBRA INTERFOSSA. 



0. t. satis elongata, purpureo-fusca, ; anfr. nucleosis ii., laevibus, elongatis ; 

 anfr. normalibus v. convexis.suturis valde irapressis ; costis radiantibus sub- 

 varicosis circ. xi., et spiralibus subaequantibus, quarum iii.-v. in spira, mon- 

 strantur, decussata ; interstitiis altis, quadratis, laminulis incrementi, et in- 

 terdurn costulis spiralibus obtusis intercalantibus, ssepe ornatis ; aperturd 

 ovata, labro (t. adulta) iatus dentato ; canali satis longa, saspius clausa. 

 Long. -85, long. spir. -4, lat. -45, div. 60. 



Hab. Neeah Bay, Swan: Vancouver, Lord, (named Fusus orpheus, as of 

 Gld. in Br. Mus.) 



Variat. : t. atropurpured; costis spiralibus distantibus, in spira. duabus, 

 foveis majoribus. Variat quoque t. albido zonata. 



1 Chrysodomus rectirostris, n. s. 



?Chr. t. parva, albida, carueo maculata, gracili epidermide tenui, cornea 

 induta, ; anfr. nucleosis ? . . . [decollatis ;] anfr. normalibus vi. planatis, su- 

 turis parum distinctis ; adolescente, costulis radiantibus circiter xiv. latis, 

 haud expressis, adulta obsoletis ; lineis spiralibus baud conspicuis : apertura 

 elongato-pyriformi, in canalem valde productum, apertum, rectum, subito 

 attenuata; labro acuto, parum arcuato, haud sinuato ; labio inconspicuo. 

 Long. -88, long. spir. -43, lat. -32, div. 33. 



jjab In sinu Pugetiano, specimen unicum legit Kennerley. 



Aspectu Belam, forma Perronam, nisi labro haud sinuato, commemorat : 

 characteribus plurimis subgeneri Siphoni convcnit. 



Synopsis of the Genus POMOXYS, Raf. 



BY THEODORE GILL. 



In order to dissipate part of the confusion iDto which the nomenclature of 

 this genus has fallen, and to make known several new species, the present 

 article is submitted. 



Genus POMOXYS, (Raf.) 



I. Caudal peduncle with its height in front (-14) greater 



than its length (-11 -12); anal fin extending back- 

 wards nearly to base of caudal. P. brevicauda. 



II. Caudal peduncle longer (-13 -15) than high ('11 *13) ; 



anal fin not passing beyond the second third of pe- 

 duncle. 

 Height exceeding three-tenths ("31) of length ; head less 



than three-tenths ( - 24). P. intermedins. 



Height less than averaging three-tenths ('29) of length, 

 and scarcely longer than head. 

 Caudal peduncle slender ("15 long, '11J high). 

 First dorsal spine less than half ("02^) an 

 eye's diameter. P. storerius. 



Caudal peduncle stout, little longer than high (*13^ 

 long, *13 high). First dorsal spine equal to 

 two-thirds (04^) of an eye's diameter. P. protacanthus. 



POMOXYS BREVICAUDA, Gill. 



D. VI. 15. A. VI. 17. P. 15. 



(3 

 Scales (1229-) 42 .* 

 14 



* The twelfth and twenty- ninth scales of the lateral line, respectively, correspond with the 

 vertical of the anterior and posterior ends of the dorsal fin. The total number of scales through 

 which the lateral line runs, exclusive of those on the caudal fin, is forty-two. At the region of great- 

 est height, there are six rows above and fourteen below the lateral line. 



[April, 



