DAVY; REVIEW OF LANTERNFISH GENUS TaaningUhthys 



GENUS Taaningichthys Bolin 



Taaningichthys minimus (Taning, 1928) 

 Figures 1 and 2 



Lampadena minima Taning, 1928: 63; Parr, 



1928: 154, Figure 37. 

 Lampadena (Lampadena) minima Fraser-Brun- 



ner, 1949: 1078, Figure. 

 Taaningichthys miriimus Bolin, 19.59: 26. 



D 11-13; A 12-13 (11-14); P 15-17; V 8; 

 gill rakers 4-5 + 1 + 11 (10-13), total 16-17 (15- 

 18); VO 8-10; AO 5-7 + 4-6, total 9-13; Pre 

 2 + 1; vertebrae 40-41; procurrent caudal rays 

 8-10 + 8. 



Mouth terminal, moderately large, JL about 

 1.5 in Pre P; maxillary slightly expanded pos- 

 teriorly. Eye large, ED 2.2-3.4 in Pre P. Pter- 

 otic spine long and directed posteriorly. Oper- 

 cular margin concave posterodorsally, slightly 

 convex posteriorly. Pectoral fin long, reaching 

 VOe or VO7; its base about midway between 

 ventral body margin and horizontal septum. 

 Pre V 2-2.4 in SL. Pre D 1.9-2.3 in SL; end 

 of base of dorsal fin clearly in advance of vent. 

 Pre A 1.4-1.6 in SL. Anterior end of base of 

 adipose fin on vertical through posterior end of 

 base of anal fin; Pre Ad 1.2-1.3 in SL. 



A band of dark pigment along anteroventral 

 margin of orbit containing a series of light gray, 

 triangular patches of tissue not present in the 

 other two species, 



Dn absent; Vn present between anterior mar- 

 gin of orbit and posteroventral margin of nasal 

 rosette. PVOi on or behind vertical through 

 upper end of base of pectoral fin and about mid- 

 way between it and ventral margin of body; 

 PVO2 in front of middle of base of pectoral fin; 

 a straight line through PVOi and PVO2 passing 

 in front of PLO. PLO about halfway between 

 upper end of base of pectoral fin and horizontal 

 septum. Five PO. VLO above base of pelvic 

 fin, usually closer to horizontal septum than to 

 ventral margin of body. Last VO usually slightly 

 elevated. SAO 1-2 photophore diameters be- 

 low horizontal septum, directly above vent. AO 

 level. AO series overlaps anterior end of in- 

 fracaudal gland. Pol directly below or in ad- 

 vance of base of adipose fin, 1-2 photophore 



^ '"^j 



B 



«::>'"'"'# 



X«« 



Figure 2. — Taayiingichthys minimus. A. Side view, sex- 

 ually dimorphic supracaudal gland of male, 53 mm. B. 

 Top view, sexually dimorphic supracaudal gland of same 

 male. C. Side view, sexually dimorphic supracaudal 

 gland of female, 54 mm. D. Top view, sexually dimorphic 

 supracaudal gland of same female. 



69 



