Young, C.M. & Vazquez, E., 1995. Morphology, larval development, and distribution of Bathypera feminalba n. sp. (Ascidiacea: Pyuridae), a deep-water ascidian from the fjords and sounds of British Columbia. Invertebrate Biology 114 (1): 89-106.
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Young, C.M. & Vázquez, E., 1997. Agnezia monnioti and Styela gagetyleri, new deep-sea ascidians specialized for life within and below the oxygen minimum layer in the Arabian Sea. Invertebrate Biology 116 (3): 262-276.
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