Lampadena anomala 



Parr, 1928 



Fig. 145— Lampadena anomala, 149.7 mm. From Krefft 

 (1970, p. 282, fig. 4). 



Description 



D. 16; A. 13-14; P. 16-18; AO 3-4 + 2; gill rakers 5 -h 1 -^ 11 (10-12), total 17 (16-18); 

 vertebrae 36-38. 



The following data and description are taken from Nafpaktitis and Paxton (1968) and 

 from Krefft (1970). 



Photophores smaller than in other species of the genus. VLO nearer lateral line than to 

 pelvic base. Three VO; 3 SAO; 3 AOa, widely separated; 2 AOp, the last over anterior margin 

 of infracaudal luminous gland. Three Pre, the first 2 very close together, the third far distant 

 at end of lateral line. SAOu and Pol about their diameters below lateral line. Supracaudal 

 luminous gland slightly shorter than infracaudal, its length about equal to distance between 

 end of anal base and anterior margin of infracaudal gland. 



Size: To about 150 mm. 



Least depth of capture: To 170-330 m at night (Krefft, 1970). 



Distribution: L. anomala is known primarily from the Atlantic Ocean. Nafpaktitis and 

 Nafpaktitis ( 1969) reported a single, damaged specimen from the western Indian Ocean. A 

 badly damaged specimen, apparently of this species, was taken in the east-central Pacific 

 Ocean at about 05° S, 135° W. 

 Discussion 



The occurrence of this species in the eastern Pacific Ocean is somewhat questionable. It is 

 based on a badly damaged specimen (ca. 48 mm) that conforms well to the diagnoses given by 

 Nafpaktitis and Paxton (1968) and by Krefft (1970), exceptfor somewhat fewer gill rakers (4 + 

 1 ^- 9-10, total 14-15). All photophores, except the AO series, are missing in the Pacific 

 specimen, but the weakly formed caudal luminous glands, and the general similarity in 

 counts, indicate at least a close relationship to L. anomala. 



Dorsadena Coleman and Nafpaktitis, 1972 



Basically similar to genus Lampadena in body structure, arrangement of photophores, 

 and size and positions of caudal luminous glands. It differs principally in having an elongate 

 luminous gland covering the dorsal midline immediately in front of the adipose fin; this gland 

 is in addition to the supracaudal and infracaudal glands. Also head, body, anterior portion of 

 caudal fin, and scale pockets along lateral line bear many tiny secondary photophores. Four or 

 5 Pre, 1 or 2 far above lateral line near bases of dorsal procurrent caudal rays. 



A single species is known. 



156 



