Figure 54. 



Janthinosoma musica: i, larva, 2, its antenna; 3, the maxillary palpus; 4, mentum; 

 5, mauaible; 6, maxillary brush; 7, anal siphon; 8, the band of scales; 9, an individual 

 scale; 10, siphonal spines: all much enlarged. (Original.) 



