ADDENDA ET COEHIGENDA. 659 



Page 164. Liparis pulchellus. 



Having seen the first part of the first vohime of the Proceed. Calif. 

 Acad. Nat. Hist., I am enabled to add the formula of the fins in this 

 species : Dr. AjTes, however, says that the vertical fins are so united 

 that it is not easy to enumerate the rays : — 



D. 47. A. 40. C. 11. 



Girard has given an incorrect, or at least unintelligible description 

 of the pectoral fins ; according to Dr. Ajtcs's account, they have the 

 same form as in L. vidgaris. The gOl-opening is small, equal ia 

 width to the diameter of the eye ; teeth tricuspid. 



Page 165. Liparis mucosus. 



It is evident from the short description given by Dr. Ayres that 

 this species is veiy distinct from L. pidcliellus ; but the characters 

 by which it difiers from L. calhjodon, PaU., have not been pointed 

 out by its discoverer : — 



" The length of the head is one-fourth of the total (the caudal 

 excluded) ; snout rounded anteriorly, not truncated ; longitudinal 

 diameter of the eye nearly one-sixth of the length of the head. The 

 dorsal and anal fins both arise at about the same points as in L. pid- 

 cliellus ; they are not continuous with the caudal, but terminate at its 

 base, leaving that fin separate and distinct, with a rounded extremity. 

 The dorsal is emarginate a short distance from its origin, giving in 

 a degree the appearance of an anterior dorsal. Plain greenish-olive, 

 lighter beneath. 



" In the branchial aperture, form of the operculum, teeth, nostrils, 

 pectoral and ventral fins, ia the loose attachment of the skin, this 

 species agrees well with L. pidchellus." (Ayres.) 



San Francisco. 



Page 166. 

 Erase Batrachus apiatus from the Kst of doubtful species. 



Page 168. Add the following species : — 



1 a. Batrachus apiatus. 

 Cut: i§- Val. xii. p. 477 ; Cuv. Rhgne Anim. El. Poiss. pi. 85. fig. 3. 

 D. 3 I 19. A. 16. V. 1 I 2. 



The skia on the crown of the head, on the cheek and on the chia 

 is provided with reticulated folds ; a series of pores rims along the 

 side, and a vertical fold of the skin descends from each pore. Thb 

 length of the head is two-sevenths of the total ; the width of the 

 bony bridge between the orbits is contained five times and a half in 

 the length of the head, and equals the extent of the snout, which is 

 longer than the eye. GiU-covers with four spines directed back- 

 wards, two belonging to the operculum and two to the suboperculum. 

 Vomer and palatine bones with a series of conical teeth. Snout 



