Wandering Broadhead Planarian Bipalium adventitium Hyman, 1943    
Kingdom Animalia   >   Phylum Platyhelminthes   >   Class Trepaxonemata   >   Order Neoophora   >   Family Geoplanidae   >   Genus Bipalium   

Status:

"The bodies of land planarians are quite flexible and contractible. Thus their dimensions change... The species is believed to have been introduced to North America from eastern Asia, although there are apparently no records of it outside of the U.S. Bipalium adventitium has since been recorded from many locations in the U.S., especially in the northeast." (A. Orstan, pers. comm.) More info in this paper.

Description:

Compare Bipalium pennsylvanicum. Small, typically about 3 inches long or less, has a single dark median stripe that usually does not reach the neck. B. kewense is larger, can be as long as your hand, has five dark longitudinal stripes that reach the neck. It shows up in greenhouses, plant nurseries, gardens, etc. (B. Norden, pers. comm.) The pale ventral side features a ciliated creeping sole. Has a semilunar-shaped head and is typically a yellow or orange color. (Ogren, Yuster, and Norden)

Relationships:

Feeds on earthworms.

There are 46 records in the project database.

View taxon at iNaturalist

View taxon at NatureServe

Search Google Images

Search MBP Facebook posts (beta | requires login)


[View seasonality details]
GAAL WA FR CL MO HO BA BC HACE PG AA CVCHSM KE QACNTADOWISOWO
A Wandering Broadhead Planarian in Washington Co., Maryland (4/9/2019). Verified by Butch Norden. Photo by Michele Siebert. (MBP list)

A Wandering Broadhead Planarian in Washington Co., Maryland (5/27/2018). Verified by Butch Norden. Photo by Della Jackson. (MBP list)

A Wandering Broadhead Planarian in Montgomery Co., Maryland (6/10/2010). Photo by Aydin Orstan. (MBP list)

A Wandering Broadhead Planarian in Montgomery Co., Maryland (6/9/2009). Photo by Aydin Orstan. (MBP list)

Wandering Broadhead Planarian in Baltimore Co., Maryland (4/21/2019). Photo by Tulsa Simpson. (MBP list)

A Wandering Broadhead Planarian in Anne Arundel Co., Maryland (5/28/2018). Verified by Butch Norden. Photo by Kerry Wixted. (MBP list)

A Wandering Broadhead Planarian in Harford Co., Maryland (4/17/2019). Verified by Butch Norden. Photo by James Campbell. (MBP list)

Wandering Broadhead Planarian in Montgomery Co., Maryland (11/16/2022). (c) belby, some rights reserved (CC BY-NC). Photo by Bonnie Bell. (MBP list)

A Wandering Broadhead Planarian in Baltimore Co., Maryland (5/13/2009). Determined by Aydin Örstan and Butch Norden. Photo by Justine Schaeffer. (MBP list)

A Wandering Broadhead Planarian in Carroll Co., Maryland (5/25/2023). Verified by Rebekah Wallace LaForest, University of Georgia Center for Invasive Species and Ecosystem Health. Photo by Dave Webb. (MBP list)

A Wandering Broadhead Planarian feeding on earthworm. Collected in Georgetown, Washington, D.C. (9/25/2009). Notes: 'This terrestrial planarian is a predator of earthworms. In the photo the light colored tissue covering a portion of the earthworm's body is the planarian's everted pharynx (arrow). The pharynx is located not at or near the head of the planarian, but at about the middle of its body. This photo is from our short paper on the feeding of these planarians.' Photo by Aydin Orstan. (MBP list)

A Wandering Broadhead Planarian in Carroll Co., Maryland (4/29/2019). Verified by Butch Nordem. Photo by Candice Collison. (MBP list)


View All Images

Use of images featured on Maryland Biodiversity Project is only permitted with express permission of the photographer.