24 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 21 



Stenocionops ovata (Bell). From Bay of Panama south to Santa 

 Elena Bay, Ecuador. 



Stenocionops beebei Glassell. Santa Maria Bay, Lower California; 

 Gulf of California: from Cape Pulmo north to Angel de la Guarda 

 Island. 



Macrocoeloma villosum (Bell). Gulf of California: from Santa Inez 

 Point south to Agua Verde Bay. 



Thoe sulcata sulcata Stimpson. Gulf of California: from Arena Bank 

 south to Cabeza Ballena. 



Thoe sulcata panamensis Nobili. From Gorgona Island, Colombia, 

 south to Salinas, Ecuador. 



PARTHENOPIDAE 



Parthenope (Parthenope) hyponca (Stimpson). From Mazatlan, 

 Mexico, south to Salango Island, Ecuador {Velero HI), and W of Cape 

 Santa Elena [Askoy]. 



Parthenope (Platylambrus) exilipes (Rathbun). From Bay of Pan- 

 ama south to Lobos de Afuera Islands, Peru. Revilla Gigedo Islands: 

 Socorro Island. 



Parthenope (Platylambrus) depressiuscula (Stimpson). From Man- 

 zanillo north to Isabel Island, Mexico; from Panama south to Malaga 

 Bay, Colombia [Askoy], and Santa Elena Bay, Ecuador. 



Parthenope (Pseudolambrus) triangula (Stimpson). Lower Cali- 

 fornia: from Cape San Lucas north to Magdalena Bay; Gulf of Cali- 

 fornia: from Cape San Lucas north to Puerto Escondido; Revilla 

 Gigedo Islands: Socorro and Clarion; La Plata Island, Ecuador. 



Parthenope (Pseudolambrus) excavata (Stimpson). Gulf of Cali- 

 fornia: from Santa Inez Bay north to Puerto Refugio, Angel de la 

 Guarda Island; from Panama (general) to Taboga Island, Panama 

 (specific). 



Thyrolambrus glasselli Garth ( = T. erosus Rathbun). Lower Cali- 

 fornia: from Cape San Lucas north to Magdalena Bay; Gulf of Cali- 

 fornia: from San Lorenzo Channel north to San Marcos Island; from 

 Cape San Lucas south to Gorgona Island, Colombia (Velero III), and 

 off Esmeraldas, Ecuador [Askoy]. Revilla Gigedo Islands: Clarion 

 Island. 



Daldorfia garthi Glassell. From off Nicaragua south to Octavia Bay, 

 Colombia. Galapagos Islands: from Sulivan Bay, James Island, north 

 to Tower Island. 



