Specimen Information

Doriopsilla pharpa
Doriopsilla pharpa
(lemon drop)
Mollusks-Nudibranchs
Native Transplant

Specimen ID1895911
GroupMollusks-Nudibranchs
GenusDoriopsilla
Speciespharpa
Common Namelemon drop
StateMA
CountyBarnstable
LocalityWaquoit Bay, Cape Cod, MA
Mapping AccuracyAccurate
HUC8 NameCape Cod
HUC8 Number01090002
HUC10 NameCape Cod
HUC10 Number0109000202
HUC12 NameHyannis Harbor-Frontal Nantucket Sound
HUC12 Number010900020203
Map
Collection Year1973
Year AccuracyActual
Potential Pathwayhitch hiker in aquaculture
Statusfailed
Reference 1
Ref. Number:46544
Author:Raviraj, R., C. Scheetz, J.T. Carlton, K.T. Burns, S.C. Crosby, K. Cuzco, M.K. Donato, M. Fajardo, I. Morrison, M. Olavarria, D. Romanello, H. Schwarzenbach, N.C. Spiller, and J.P. Susarchick
Date:2025
Title:Sea slug invasions: the non-native Archidoris pseudoargus (Nudibranchia: Dorididae) moves south and the native Doriopsilla pharpa (Nudibranchia: Dendrodorididae) moves north on the U.S. Atlantic coast
Journal:BioInvasions Records
Volume:14
Issue:3
Pages:687-699
CommentsPopulation was found in the summer of 1973, but was thought to have not survived the winter due to no sightings in the following 50 years
Record TypeLiterature
Earliest Recordnation
VerifierM. Patricia Morse
Freshwater/MarineMarine
Specimen ImpactFound feeding on the sponge Cliona celata


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Citation information: U.S. Geological Survey. [2026]. Nonindigenous Aquatic Species Database. Gainesville, Florida. Accessed [2/23/2026].

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