Halgerda johnsonorum from Marshall Ids

June 27, 2000
From: Scott Johnson


Hi Bill,

Attached are two photos of the newly described Halgerda johnsonorum. So far we've found these only along Kwajalein Atoll's western seaward reef, where it is nocturnally active in caves and ledges at depths of about 10 to 20 meters. We generally see one at a time, but occasionally run across pairs.

Scott

johnson@kmr.ll.mit.edu

Johnson, S., 2000 (Jun 27) Halgerda johnsonorum from Marshall Ids. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/2624

Dear Scott,
Thanks for the photos. I must say it looks like H. willeyi externally. I will have to look through my notes and photos to see if I have anything like this hiding amongst my H. willeyi. Have a look also at Rie Nakano's Halgerda cf. willeyi from Japan. It looks like there may be a group of black and yellow lined species to match the orange marked species.

There are pages on the Forum for the three new species of Halgerda described in Carlson & Hoff's recent paper:
•Halgerda johnsonorum
•Halgerda batangas
•Halgerda okinawa

Best wishes,
Bill Rudman.

Rudman, W.B., 2000 (Jun 27). Comment on Halgerda johnsonorum from Marshall Ids by Scott Johnson. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/2624

Factsheet

Halgerda johnsonorum