FISHES. MCCULLOCH. 101 



Upper anteorbital photophore small, close to the 

 orbit and a little above the level of the nostril ; lower 

 anteorbital immediately below the upper, and extending 

 around the margin of the orbit to below the anterior 

 third of the eye. Xo sub- or postorbital photophores. 

 Four pairs of thoracics, the last higher than the others 

 and in advance of the base of the ventrals. Two sub- 

 pectorals forming an oblique row with the first thoracic. 

 Suprapectoral nearer the base of the pectoral fin than 

 the lateral line, with a large supplementary gland; post- 

 pectoral nearer the ventral than the pectoral I'm. Supra- 

 ventral almost midway between the ventral lin and the 

 lateral line. Four pairs of ventral photophores, the 

 second high above the others. Three superanals on each 

 side, the upper behind an oblique line cutting the two 

 lower ; it is more widely separated than the other two, 

 but is separated by a short space from the lateral line. 

 First anteroanal elevated, but not so high as the middle 

 superanal ; three more form an oblique row on the right 

 side and four on the left. Lower posterolateral obliquely 

 above and behind the last anteroanal, the upper not 

 touching the lateral line. Five posteroanals in an 

 oblique row on the left side and six on the right. Four 

 precaudals, the last separated from the others, but not 

 reaching the level of the lateral line. 



Described and figured from a specimen 188 mm. 

 long, from the Great Australian Bight, 350-450 fathoms. 

 It is denuded of scales, but their position is clearly 

 shown by the scale-pits and markings, and its luminous 

 organs are well preserved. 



Variation. Fifty-two other specimens, all in a bad 

 state of preservation, appear to have their photophores 

 similarly arranged, but one example has only four autero- 

 anals and six posteroanals, as is shown on the right side 

 of the specimen described. These are illustrated in 

 PI. xliii, fig. 2. 



Localities. Fifty-four specimens, 118-172 mm. long, 

 are preserved from the following localities : 



Great Australian Bight, south from Eucla, 350-450 

 fathoms; 14th May, 1913. 



Great Australian Bight, south-east from Eucla, long. 

 131 E., 200-300 fathoms; 5th and 6th May, 1913. 



