168 ALLAN HAXCOCK PACIFIC EXPEDITIONS \-OL. 20 



PLATE 7 



Fifj;. 31. Modiolus tn't/lcclus n. sp. Hnlotype. San Diego, Califfirnia. 



Length: 88 mm. 

 Fig. 32. Modiolus neglecliis n.sp. Iloiotype. San Diego, California. 



Dorsal view. 

 Fig. 3 3. Modiolus rectus (Conrad) 1837. San Pedro, California. 



(Chace collection) Typical young specimen. Length: 75 



mm. 

 Fig. 34. Modiolus rectus (Conrad) 1837. San Pedro, California. 



(California Institute of Technology) Large elongate form 



often named flabellatus Gould 1850. Length: 170 mm. 

 Fig. 35. Modiolus rectus (Conrad) 1837. San Pedro, California. 



(California Institute of Technology) Large specimen, very 



close to the figure of the holot\pe of flabellatus Gould 



1850. Length: 137 mm. 



