50 Records of the S.A. Museum 



Described and figured from a specimen 78 mm. long. It agrees in all details 

 witli the three cotypes of the species with which we ha\e compared it, except in 

 having only five instead of six dorsal spines, which is an individual peculiarity. 



Variation. A number of specimens from South .\ustralia exhibit some 

 variation in the relative lengths of the spines and rays of the dorsal and anal 

 fins, which are shorter in younger examples, the rays not reaching the base of the 

 caudal : the pearly lines on the head and body are often wanting in preserved 

 specimens. 



Loc. Noarlunga, .South .\uslralia: figured sijecimen. .Semaphore, .South 

 Australia. St. \'inccnt ( iulf, .South ,\ustralia. (Jueenscliff, \'ictoria. 



MUGILOGOBIUS GALWAYI sp. nov. 

 Blue-spot Goby. 

 Plate iii, fig. i. 



D.vi; i, 8: .\.i, 8: P. 15: V.i, 5: C.15: 31 rows of scales between the upper 

 base of the pectoral and the hypnral joint, and 10 between the anterior dorsal 

 and anal rays. 



Depth 5-3 in the length to the hypural joint; head 3-6 in the same: eye 

 slightly shorter than the snout, 4-4 in the head; interorbital space 2-1 in the eye: 

 depth of caudal peduncle 2 -O in the head; breadth between the Ijases of the pec- 

 torals I •! in the depth; second dorsal spine 1 '9, seventh dorsal ray I 7, posterior 

 anal ray i g in the head ; median caudal rays as long as the head. 



Cheeks naked ; some rather indistinct large scales on the operculum : rows 

 of open pores extend around the eye, preopercular margin and mandible ; indis- 

 tinct series of upraised rows of mucigerous pores are present on the cheek and 

 operculum : eyes of moderate size, separated by a slightly concave interorbital 

 space, which is about half as wide as the eye: snout tumid, anterior nostril in a 

 short tube near the upper lip, the posterior a simple opening ; maxillary reaching 

 to below the middle of the eye, the lower jaw closing within the upper: teeth 

 villiform. in a band in each jaw, which becomes narrow laterally; the outer teeth 

 somewhat larger than the others ; no canines ; palate toothless ; tongue thick, 

 rounded anteriorly, and largely adnate to the floor of the mouth : gill-openings 

 separated by a space which is aliout one and one-half times as wide as the eye: 

 exposed edge of pectoral arch entire, without ixipillae. 



Body covered with large ctenoid scales, which extend forward to the eyes 

 above, but are somewhat rudimentary on the breast and base of the pectoral ; they 

 are a little larger posteriorly than elsewhere : genital papilla elongate, and well 

 developed. 



