(Copenhagen, 1799). 4to, Without wrappers. In ""Nye Samling af det Kongelige Danske Videnskabers Selskabs Skrifter 5. A few loose leaves. Pp. 333-340 + folded plate.
Arctides guineensis is a species of slipper lobster which lives in the Bermuda Triangle. It is known in Bermuda as the small Spanish lobster. First descriptiobn of Arctides guineensis, a slipper lobster, also known as the small Spanish lobster. In this original description of the species, Lorenz Spengler gave the type locality as ""Dens Fædreneland er Kysten af Guinea"", probably meaning Ghana. However, A. guineensis is not known to have ever occurred near Africa, and this locality is probably an error. The species was also described by Pierre André Latreille in 1818 under the name Scyllarus sculptus, citing a type locality of ""Méditerranée"" (Mediterranean Sea), which is also unlikely.
(Copenhagen, 1799). 4to. Without wrappers. In ""Nye Samling af det Kongelige Danske Videnskabers Selskabs Skrifter 5"". Minor soiling to outer margin. Pp. 607-614 + folded plate.
First description of the Hammer Coral Euphyllia fimbriata. Other names this coral is known for, though inaccurately, are Anchor Coral and Frogspawn Coral.
Copenhagen, 1781. 4to. Without wrappers. In ""Nye Samling af det Kongelige Danske Videnskabers Selskabs Skrifter 1"". A few leaves detached. Pp. 240-248 + plate.
First appearance of the first description of Madrepora Cochlea (Coral).
(Copenhagen, 1781). 4to. Without wrappers. In ""Nye Samling af det Kongelige Danske Videnskabers Selskabs Skrifter 1"". A few leaves detached. Pp. 240-248 + plate. Pp. 365-373" Pp. 373-38.