TY - JOUR N2 - During August–September 2011, scientists aboard the R/V Meteor sampled marine animals around Iceland for the IceAGE project (Icelandic marine Animals: Genetics and Ecology). The last sample was taken at a site known as “The Rose Garden” off north− eastern Iceland and yielded a large number of two species of Proneomenia (Mollusca, Aplacophora, Solenogastres, Cavibelonia, Proneomeniidae). We examined isolated sclerites, radulae, and histological section series for both species. The first, Proneomenia sluiteri Hubrecht, 1880, was originally described from the Barents Sea. This is the first record of this species in Icelandic waters. However, examination of aplacophoran lots collected during the earlier BIOICE campaign revealed additional Icelandic localities from which this species was collected previously. The second represents a new species of Proneomenia, which, unlike other known representatives of the genus, broods juveniles in the mantle cavity. We provide a formal description, proposing the name Proneomenia custodiens sp. n. Interestingly, the sclerites of brooded juveniles are scales like those found in the putatively plesiomorphic order Pholidoskepia rather than hollow needles like those of the adults of this species. Cytochrome c oxidase subunit I (COI) DNA barcode sequences are provided for both species of Proneomenia . L1 - http://www.czasopisma.pan.pl/Content/99579/PDF/10183_Volume35_Issue2_09_paper.pdf L2 - http://www.czasopisma.pan.pl/Content/99579 PY - 2014 IS - No 2 EP - 310 DO - 10.2478/popore−2014−0012 KW - Icelandic waters KW - Aplacophora KW - Neomeniomorpha KW - brooding KW - taxonomy A1 - Todt, Christiane A1 - Kocot, Kevin M. PB - Polish Academy of Sciences PB - Committee on Polar Research DA - 2014 T1 - New Records for The Solenogaster Proneomenia Sluiteri (Mollusca) from Icelandic Waters and Description of Proneomenia Custodiens sp. n. SP - 291 UR - http://www.czasopisma.pan.pl/dlibra/publication/edition/99579 T2 - Polish Polar Research ER -