Avagina polyvacuola | November 1972 | | | Eulitoral and sublitoral |
Isodiametra colorata | November 1972 | | | |
Myozona aerumnosa | 1972-1973 | | | |
Paromalostomum subflavum | | | | |
Amphiscolops sp. | Oct 1972 - Feb 1973 | | | Eulitoral and sublitoral |
Praeaphanostoma vitreum | November 1972 | | | |
Philocelis karlingi pacifica | November 1972 | | | |
Philactinoposthia tenebrosa | November 1972 | | | |
Eumecynostomum tardum | November 1972 | | | |
Carcharodorhynchus galapagoensis | 1972 and 1973 | | | |
Carcharodorhynchus arista | 1972 and 1973 | | | |
Schizochilus santacruzensis | 1972 and 1973 | | | |
Cheliplana pacifica | 1972 and 1973 | | | |
Messoplana falcata valida | November 1972 | | | in sublitoral, fine to coarse sediment, about 1 meter deep, at the low tide. |
Promesostoma tenebrosum | November 1972 | | | area north west and above rocky pool, near low tide line, and rock pool above the low tide line, 2 specimens. |
Archilina papillosa | September 1972 | | | coral sand below low tide line. |
Peraclistus stimula | September 1972 | | | rough sand beach. |
Duplominona karlingi | August-September 1972 | | | sublitoral, coral sand. |
Duplominona krameri | September 1972 | | | |
Parotoplana turgida | September 1972 | | | in the lower beach about 2 meters deep, below the low tide line. |
Philosyrtis santacruzensis | September 1972 | | | sublitoral sand about 1 meter deep, below the low tide line. |
Sabulirhynchus axi | 1972 | | | coarse sand in rock pools |
Pygmorhynchus pygmaeus | 1972 | | | |
Haloplanella semicircula santacruzensis | Feb, Nov 1972 | | | several specimens, in eulittoral sand beach in coarse sand and rocky pool. |
Phonorhynchoides haegheni | 1972-1973 | | | |
Macrostomum troubadicus | prior to 1976 | | | within the range of the low water line. two specimens. |
Macrostomum galloprovinciale | prior to 1976 | | | heterogenous sediment. 2 specimens. |
Theama occidua | Feb 1972 - Feb 1973 | | | |
Traunfelsia spec. | Mar-Oct 1972 | | | |
Reinhardorhynchus variodentata | | | rock pools | |