(Contribution from the Marine Laboratory, University of liiami) 



LIFE HISTORI OF TEREDO;^ 



by L, B. Isham 



Abstract 



Since so little is knoi-m of the early life history of larviparous shipworms, 

 the larval and early boring stages of Teredo ( Lyrodus ) pedicellata De 

 Qua tref ages were studied in some detaill 



This shipworm, the most common in the i.iiami area, was cultured in laboratory 

 tanks and used as a source of larvae of known age. 



The anatomy o.!-" the larvae ".fas studied and compared, in some respects, virith 

 other species of Tere do. 



The free swimjiiing and cravjling sta3;es and the early borang stages virere 

 described in respect to anatomy and behavior. The development of the 

 siphons and of the early development of the shells and pallets were de- 

 scribed. 



The mortality rate of these stages was discussed. 



The speed of siffimming and crawling was measured and descriptive data con- 

 cerning locomotion ?j'ere noted. 



^-This -papsr appeared in full in the Bulletin of Marine iJcience of the 

 Gulf and Caribbean 2(U):^7U-589, May, 19?3. ■ Copies of this may be 



Laboratory, Unj.versity of 



H - 1 



