8 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 122 



a dorsal fin element) of the posteriormost pair of pores. Frequently, 

 the posteriormost pair of pores is well removed from the others. Pos- 

 terior to the last pair of pores there usually occurs what appears to be 

 a series of simple pores. Close examination will show that these are 

 merely shallow depressions or pits. 



Lip crenulae (table 5): The number of small lobulations on the 

 ventral margin of the upper lip. Some crenulae are broad, others 

 very shallowly separated and scarcely distinct. If there is a doubt, 

 the internal surface of the lip will sometimes exhibit the mucosal 

 lining organized into pads corresponding to crenulations, and these 

 may be counted instead of the crenulae. Counts of crenulae are unre- 

 liable where numerous irregularities occur on the lip. 



Color pattern descriptions. — The word "dusky" denotes a dark 

 area relative to the palest surrounding areas. Usually a dusky area 

 consists of a concentration of nonimpinging black melanophores that 

 may not be individually recognizable to the naked eye. 



Plates. — The drawings of the complete lateral views of specimens 

 are all made to a base total length of 6)2 inches and are reproduced 

 here 1:1. The head measurements were made as projections, rather 

 than from point to point. For this reason, measurements of the head 

 taken from the illustration will give different relative values from 

 those which would be obtained if actual specimens were measured 

 point to point. All efforts were made to obtain accuracy and com- 

 pleteness in representing the specimens drawn. All pore openings 

 visible from the view drawn are included except those of the anterior 

 continuous portion of the lateral line, which were impossible to 

 determine accurately. The inserted drawing of the upper hp on each 

 plate portrays the lip with its laterally, posteriorly projected portions 

 expanded anteriorly. The snout region of the head in blenniids is 

 fleshy and relatively soft, and the shape is variable in some degree. 

 This apparent variation is increased because of the position in which 

 the specimens were held when the artist drew the head contours. 

 Some allowance should thus be made when comparing actual speci- 

 mens with the drawings. Finally, because only one specimen has 

 been illustrated from a particular population, some allowance must be 

 made for natural variation, which is particularly great in color pattern. 



Entomacrodus Gill 



Entomacrodus Gill, 1859, Proc. Acad. Nat. Sci. Philadelphia, vol. 11, p. 168. 

 [Type-species: E. nigricans Gill, monotypy.] 



Salarichthys Guichenot, 1867, Mem. Soc. Sci. Nat. Cherbourg, vol. 13, pp. 96-100. 

 [Type-species: Salarias vomerinus Valenciennes, original designation.] 



Giffordella Fowler, 1932, Proc. U.S. Nat. Mus., vol. 80, no. 6, pp. 14-15. [Type- 

 species: G. corneliae, original designation.] 



