Hemerotrecha hanfordana has both darkly colored chelicera and propeltidium; palpus dark on metatarsus; two short, flat, pointed ctenidia separate it from both Hemerotrecha kaboomi, new species and Hemerotrecha californica, which have longer, thinner ctenidia.
Abdomen: two flat, pointed ctenidia extending across half of the succeeding abdominal segment (Fig.
The ctenidia are longer than either of the above species.
Abdomen: ctenidia extending entire length of succeeding sternite (Fig.
Palpus with metatarsus and distal 20% of tarsus dusky; ctenidia extend half way across succeeding sternite.
27); legs mostly pale, slightly dusky on ventral side of femur of legs III, IV, abdomen mottled, ctenidia extend halfway across succeeding sternite.
Isotopic relationship in muscle and ctenidia tissues in scallops from Saroma Lake showed that there were no changes in their assimilated diet (Fig.
However, ctenidia was the least variable in [delta][sup.
Results showed that there is a possibility that the hanging cultured scallops are feeding on net plankton as reflected by nearest isotopic values to ctenidia and muscle.
In Saloma Lake, results showed that muscle and ctenidia tissues were more positive in [delta][sup.
13]C signatures of muscle and ctenidia were used, an average of 0.