154 s - STILLMAN BERRY. 



Genus Loliolus Steenstrup, 1856. 



4 species. 

 Genus Sepioteuthis de Blainville, 1824. 



21 species. 



Superfamily Spiruloidea. 



Family SPIRULID/E. (A single organ thought to be photogenic at posterior end of 



body.) 

 Genus SPIRULA Lamarck, 1799. 



ii named forms (number true species uncertain): atlantica, australis, blakei, 

 fragilis, indopacifica, laevis, peronii, prototypus, reticulata, spirilla, vulgaris. 



Superfamily Sepioidea. 



Family Promachoteuthida. (No photogenic species known.) 

 Genus Promachoteuthis Hoyle, 1885. 



1 species. 



Family Idiosepiidcz. (No photogenic species known.) 

 Genus Idiosepius Steenstrup, 1881. 



2 species. 

 Family SEPIOLID/E. 



Subfamily Rossiinse. (No photogenic species known with certainty. 1 ) 

 Genus ROSSIA Owen, 1834. 



14 species. 

 Genus Semirossia Steenstrup, 1887. 



2 species. 



Subfamily Heteroteuthinae. (A fused pair of glandular photogenic organs on 



ink sac in all known cases.) 

 Genus HETEROTEUTHIS Gray, 1849. 



3 species: dispar, hawaiiensis, weberi. 



Genus STOLOTEUTHIS Verrill, 1881. (Photogenic organs still undescribed.) 



I species: lencoptera. 

 Genus IRIDOTEUTHIS Naef, 1912. 



i species: iris. 

 Genus NECTOTEUTHIS Verrill, 1883. (Photogenic organs still undescribed.) 



I species: pourtalesii. 

 Subfamily Sepiolinae. 



Genus SEPIOLA Schneider, 1784. (Paired glandular photogenic organs on 



ink sac.) 

 ii species: affinis, atlantica, aurantiaca, intermedia(l) , ligulata, pacifica 



(?), penares (?), robusta, rossiceformis (?), sepiola, steenstrupiana. 

 Genus RONDELETIA Naef, 1916. (A fused pair of glandular photogenic organs 



on ink sac.) 

 i species: minor. 

 Genus Sepietta Naef, 1912. (No photogenic species.) 



4 or 5 species. 



6 This lack is stated by Naef (:i2, p. 245) as one of the diagnostic characters of 

 the subfamily, but the possession of photogenic organs by Rossia macrosoma is 

 definitely affirmed by Meyer (:o6, pp. 390, 392). One is perforce still of unsettled 

 mind in the matter, especially as both observers worked at Naples, and Naef goes 

 into no details beyond the mere negation. 



